Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Census Methods”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 667 records · Page 37Linked to original sources
PubMed2005

Social inequalities and cancer mortality in France, 1975-1990.

OBJECTIVE: to investigate social inequalities in cancer mortality from 1975 through 1990 among men and women in France. METHODS: A sample, that included census data for approximately 1% of the French population, has been followed for mortality from 1975 to 1990. Causes of death were obtained through a record-linkage with the French national cause-of-death file. The analysis was restricted to those aged 35:59 in 1975 and included 61,876 men and 65,291 women. Occupational class, coded according to the social class scheme of Erikson, Goldthorpe and Portecarero in 7 categories, and educational level (in 4 categories) in 1975 have been studied. The analysis has been conducted for 15 cancer sites among men and 13 among women. Analysis used a Cox proportional hazards model. RESULTS: For educational level, inequalities among men were more pronounced for cancers of the pharynx Relative Risk (RR) lowest versus highest educational level=9.2, 95% Confidence Interval (CI) 2.9-29.1, larynx (RR=6.2, CI=3.0:12.6), oral cavity (RR=2.7, CI=1.3-5.3), lung (RR=3.5, CI=2.5-4.8), esophagus (RR=3.1, CI=1.9-5.2), stomach (RR=2.5, CI=1.2-5.3) and rectum (RR=3.4, CI=1.2-9.6). No association between educational level and cancer mortality was observed for cancers of either the colon or lymphatic and hematopoietic tissue. Social inequalities were less pronounced among women but nevertheless observed for cancer of the uterus (RR=1.9, CI=1.0-3.6), stomach (RR=4.1, CI=1.0-17.1) and lung (RR=1.6, CI=0.7-3.7). No associations were found for mortality from breast or ovarian cancers. Results were similar when socioeconomic status was measured by occupational class. CONCLUSION: The analysis showed substantial inequalities in cancer mortality in France, with large differences according to cancer site.

Adult↗
PubMed2006

Deaths in juvenile justice residential facilities.

PURPOSE: To provide the first national description of death in juvenile justice residential facilities. METHODS: Data come from recent censuses of all public and private juvenile justice facilities in the United States. Death rates for the custody population are adjusted for length at risk, and are compared to death rates of adolescents in the general population. Multivariate modeling is used to identify facility-level risk factors related to deaths. RESULTS: Adjusting for the number of days at risk, adolescents in juvenile justice facilities have lower risks of death by accident and homicide, but considerably higher risks of death from suicide and illness (200% and 50%, respectively). Facilities with larger Black populations, those that lock sleeping room doors, and facilities designed to screen young persons for future placements all had significantly higher odds of experiencing a death. CONCLUSIONS: The higher rates of death from suicide or illness suggest either (a) juvenile justice facilities host very high risk adolescents who would have died on the outside, (b) the facility environment itself increases the risk of death relative to the adolescents' environment outside the facility, particularly in the case of deaths from suicide, (c) placement in a juvenile justice facility may be indicative of a time of crisis in adolescents' lives in terms of physical or mental health and thus the risk of death increases, or most realistically, (d) some combination of the above. That deaths are more likely in facilities with larger Black populations warrants significant future investigation. Finally, the policy of locking sleeping room doors should be seriously evaluated in light of the strong association found with suicide.

Adolescent↗
PubMed2004

The impact of visual impairment on self-reported visual functioning in Latinos: The Los Angeles Latino Eye Study.

OBJECTIVE: To assess the association between presenting binocular visual acuity (VA) and self-reported visual function as measured by the 25-item National Eye Institute Visual Function Questionnaire (NEI-VFQ-25). DESIGN: A population-based, prevalence study of eye disease in Latinos 40 years and older residing in La Puente, California (Los Angeles Latino Eye Study [LALES]). PARTICIPANTS: Six thousand three hundred fifty-seven Latinos 40 years and older from 6 census tracts in La Puente. METHODS: All participants completed a standardized interview, including the NEI-VFQ-25 to measure visual functioning, and a detailed eye examination. Two definitions of visual impairment were used: (1) presenting binocular distance VA of 20/40 or worse and (2) presenting binocular distance VA worse than 20/40. Analysis of variance was used to determine any systematic differences in mean NEI-VFQ-25 scores by visual impairment. Regression analyses were completed (1) to determine the association of age, gender, number of systemic comorbidities, depression, and VA with self-reported visual function and (2) to estimate a visual impairment-related difference for each subscale based on differences in VA. MAIN OUTCOME MEASURES: The NEI-VFQ-25 scores in persons with visual impairment. RESULTS: Of the 5287 LALES participants with complete NEI-VFQ-25 data, 6.3% (including 20/40) and 4.2% (excluding 20/40) were visually impaired. In the visually impaired participants, the NEI-VFQ-25 subscale scores ranged from 46.2 (General Health) to 93.8 (Color Vision). In the regression model, only VA, depression, and number of comorbidities were significantly associated with all subscale scores (R(2) ranged from 0.09 for Ocular Pain to 0.33 for the composite score). For 9 of 11 subscales, a 5-point change was equivalent to a 1- or 2-line difference in VA. Relationships were similar regardless of the definition of visual impairment. CONCLUSION: In this population-based study of Latinos, the NEI-VFQ-25 was sensitive to differences in VA. A 5-point difference on the NEI-VFQ-25 seems to be a minimal criterion for a visual impairment-related difference. Self-reported visual function is essentially unchanged if the definition of visual impairment includes or excludes a VA of 20/40.

Adult↗
PubMed1999

Occupational physical activity and risk for breast cancer in a nationwide cohort study in Sweden.

OBJECTIVE: Our purpose was to investigate effects of physical activity on risk for breast cancer. METHODS: From the Swedish nationwide censuses in 1960 and 1970 we defined three partly overlapping cohorts of women whose occupational titles allowed reproducible classification of physical demands at work in 1960 (n = 704,904), in 1970 (n = 982,270), or with the same demands in both 1960 and 1970 (n = 253,336). The incidence of breast cancer during 1971-89 was ascertained through record linkage to the Swedish Cancer Register. We used Poisson regression to estimate relative risks (RR). RESULTS: A total of 20,419, 22,840, and 8261 breast cancers, respectively, were detected in the three cohorts. In all three cohorts the risk for breast cancer increased monotonically with decreasing level of occupational physical activity and with increasing socioeconomic status. Among women with the same estimated physical activity level in 1960 and 1970 the RR was 1.3 for sedentary as compared with high/very high activity level (95% CI 1.2-1.4; p for trend < 0.001). Adjustment for socioeconomic status virtually eliminated this association (RR 1.1; 95% CI 0.9-1.2; p for trend 0.12) leaving a statistically significant 30% gradient only among women aged 50-59 years at follow-up. The association between socioeconomic status and breast cancer risk was largely unchanged after adjustment for occupational physical activity. CONCLUSION: The protective effect of occupational physical activity on breast cancer risk, if any, appears to be confined to certain age groups.

Activities of Daily Living↗
PubMed1999

Occupational magnetic field exposure and site-specific cancer incidence: a Swedish cohort study.

OBJECTIVE: Based on 1,596,959 men and 806,278 women, site-specific cancer incidence during 1971 through 1984 was analyzed in relation to occupational magnetic field exposure. The objective was to explore potential associations for cancer diseases beyond those extensively studied before (leukemia and brain tumors). METHODS: Exposure was assessed from Census information on occupations that were linked to a job exposure matrix based on measurements. In a basic analysis, three levels of exposure were used. In addition, subjects with a more definite low exposure were compared with an aggregate of occupations with more definite exposures. RESULTS: Observed associations were weak and there were no evident exposure-response relationships. For all cancer, an approximate 10% increase in risk was seen in the medium and high exposure groups. Several types of cancer were associated with exposure among men, including cancer of the colon, biliary passages and liver, larynx and lung, testis, kidney, urinary organs, malignant melanoma, non-melanoma skin cancer, astrocytoma III-IV. For women, associations were seen for cancer of the lung, breast, corpus uteri, malignant melanoma and chronic lymphocytic leukemia. CONCLUSIONS: In the analysis of occupations with a more definite exposure, the most notable finding for men was an increased risk of testicular cancer in young workers, and for women a clear association emerged for cancer of the corpus uteri. The outcome suggests an interaction with the endocrine/immune system.

Adult↗
PubMed2002

Private dental visits per dentist in Spain from 1987 to 1997. An analysis from the Spanish national Health Interview Surveys.

OBJECTIVES: In view of the sharp increase in the number of dentists in Spain, the aim of the present study was to analyse changes in the private dentist workload in Spain over the period 1987-97. METHODS: Data were taken from censuses of the population and of dental practitioners, and from the Spanish National Health Interview Surveys. The percentage of people that had visited the dentist in the 3 months prior to the survey was calculated, and of these, the percentage whose last visit was private. The total number of visits made by those people was taken as the estimate of total private visits in Spain during 3 months. Total private activity in 1 year was derived by multiplying this estimate by four. Annual private activity was then divided by the number of dentists. RESULTS: From 1987 to 1997, the Spanish population grew 2.5% (from 38.7 to 39.7 million) and the number of dentists increased by 136.1% (from 6373 to 15,044). The total annual number of private dental visits (+/-SE) was 35.7 +/- 1.0 million in 1987, and 48.9 +/- 2.0 million in 1997 - a 36.8% increase. Thus, the mean number of private dental visits per dentist decreased 42.0% (from 5610 +/- 152 to 3251 +/- 133). CONCLUSION: A significant reduction in private dental visits per dentist is taking place in Spain.

Data Interpretation, Statistical↗
PubMed1982

Estimation of migration profiles in England and Wales.

"Migration profiles by age have been increasingly used in the analysis of migration data, and a theoretical function has been developed by researchers at the International Institute for Applied Systems Analysis (IIASA). This paper refines the approach by applying the principles of maximum likelihood to the estimation of the coefficients for the function. This enhances the statistical basis and in particular enables [the authors] to carry out tests of similarity between different areas on the basis of the calibrated coefficients. The method is applied to 1971 Census data for the local authorities of England and Wales."

Age Factors↗
PubMed1984

Infant feeding and women's work in Western Samoa: a hypothesis, some evidence and suggestions for future research.

This paper argues that a key reason for the decline in the age of weaning in 3rd world countries may be an increasing workload for women associated with increasing involvement in the cash economy. This hypothesis is considered in light of data collected in an anthropological field study of a rural village in Western Samoa. Methods used were a village census, a household survey with fertility histories and questions on household economy, a questionnaire on breastfeeding, key informant interviews, observations made during residence in the village, and archival research. The ethnographic data suggest the possibility of a causal relationship between a decline in the age of weaning and an increasing workload for women in Western Samoa. In addition, other factors thought to account for a decline in the age of weaning, such as bottle feeding and urbanization, are unimportant in rural Western Samoa.

Age Factors↗
PubMed2005

Change in spatial distribution patterns of a biennial plant between growth stages and generations in a patchy habitat.

BACKGROUND AND AIMS: The aim of the study was to evaluate factors causing change in spatial distribution patterns of plants between growth stages and generations for a monocarpic biennial plant, Lysimachia rubida. It was assumed that habitat heterogeneity was a primary factor determining spatial patterns of plants, and a randomization procedure was developed for testing the null hypothesis that only spatial association with ground surface conditions determined spatial patterns of plants. METHODS: A 5-year demographic census was conducted on an open dry habitat that was heterogeneous with regard to the ground surface conditions. KEY RESULTS: There was significant habitat association in that plants at vegetative and reproductive stages were denser in areas with smaller gravel than with larger gravel. Point process analyses rejected the null hypothesis of the spatial association with ground surface conditions. CONCLUSIONS: The results suggest that other factors, such as patchy seed dispersal, secondary dispersal of the seeds and life-history variation at various spatial scales, also affected spatial patterns of individuals in a population of L. rubida. Spatial structures and dynamics of a local population in a patchy habitat represent various performances of plants within patches and seed dispersal within a patch and beyond the patch.

Ecosystem↗
PubMed2005

Racial disparities in self-rated health at older ages: what difference does the neighborhood make?

OBJECTIVES: Racial differences in self-rated health at older ages are well documented. African Americans consistently report poorer health, even when education, income, and other health status indicators are controlled. The extent to which neighborhood-level characteristics mediate this association remains largely unexplored. We ask whether neighborhood social and economic resources help to explain the self-reported health differential between African Americans and Whites. METHODS: Using the 1990 Decennial Census, the 1994-1995 Project on Human Development in Chicago Neighborhoods-Community Survey, and selected years of the 1991-2000 Metropolitan Chicago Information Center-Metro Survey, we examine the impact of neighborhood structure and social organization on self-rated health for a sample of Chicago residents aged 55 and older (N = 636). We use multilevel modeling techniques to examine both individual and neighborhood-level covariates. RESULTS: Findings indicate that affluence, a neighborhood structural resource, contributes positively to self-rated health and attenuates the association between race and self-rated health. When the level of affluence in a community is low, residential stability is negatively related to health. Collective efficacy, a measure of neighborhood social resources, is not associated with health for this older population. DISCUSSION: Analyses incorporating individual and neighborhood-level contextual indicators may further our understanding of the complex association between sociodemographic factors and health.

Age Factors↗
PubMed2002

Increasing inequalities in all-cause and cardiovascular mortality among US adults aged 25-64 years by area socioeconomic status, 1969-1998.

BACKGROUND: This study examined the extent to which areal socio-economic gradients in all-cause and cardiovascular disease (CVD) mortality among US men and women aged 25-64 years increased between 1969 and 1998. METHODS: Using factor analysis 17 census tract variables were used to develop an areal index of socio-economic status that was used to stratify all US counties into five socio-economic categories. By linking the index to county-level mortality data from 1969 to 1998, we calculated annual age-adjusted mortality rates for each area socio-economic group. Poisson regression models were fitted to estimate areal socio-economic gradients in mortality over time. RESULTS: Areal socio-economic gradients in all-cause and cardiovascular mortality have increased substantially over the past three decades. Compared to men in the highest area socio-economic group, rates of all-cause and CVD mortality among men in the lowest area socio-economic group were 42% and 30% greater in 1969-1970 and 73% and 79% greater in 1997-1998, respectively. The gradients in mortality among women were steeper for CVD than for all causes. Compared to women in the highest area socio-economic group, rates of all-cause and CVD mortality among women in the lowest area socio-economic group were 29% and 49% greater in 1969-1970 and 53% and 94% greater in 1997-1998, respectively. CONCLUSIONS: Although US all-cause and cardiovascular mortality declined for all area socio-economic groups during 1969-1998, the gradient increased because of significantly larger mortality declines in the higher socio-economic groups. Increasing areal inequalities in mortality shown here may be related to increasing temporal differences in the material and social living conditions between areas.

Adult↗
PubMed2004

Health inequalities in Korea: age- and sex-specific educational differences in the 10 leading causes of death.

BACKGROUND: An ideological climate has persisted in Korea that has discouraged public discussion of social inequalities. Thus studies on inequalities in mortality remain undeveloped. This study is to examine age- and cause-specific socioeconomic mortality differentials for both men and women representative of the Korean population. METHODS: Using Korea's 1995 Census and 1995-2000 Death Certificate data, age-, sex-, and education-specific mortality rates were measured, after which education-specific rate ratios, and relative indices of inequality were calculated. RESULTS: Graded educational differentials in mortality were observed among both sexes with higher mortality rates related to lower educational attainment in most causes of death. However, positive associations were identified between education levels and mortality rates with respect to ischaemic heart disease among older males and breast cancer among older females. The magnitude of educational inequality in mortality was not constant across causes and in some cases differed by sex. CONCLUSIONS: The changing relation between educational attainment and mortality rates from ischaemic heart disease and breast cancer likely reflects changes in the social distribution of risk factors that emerged in the process of Korea's rapid economic development. Studies on specific exposures over the life course influencing the occurrence of and survival after specific diseases would help provide a more complete understanding of patterns and trends in socioeconomic mortality differentials in Korea.

Adult↗
PubMed2006

The burden of rotavirus diarrhea in Khanh Hoa Province, Vietnam: baseline assessment for a rotavirus vaccine trial.

BACKGROUND: In Vietnam, rotavirus is seen as a priority disease because studies have demonstrated that >50% of children hospitalized for treatment of diarrhea have rotavirus as the pathogen. To anticipate the availability of new vaccines, we have examined our field area in Nha Trang, Khanh Hoa Province, Vietnam, as a potential site to conduct a field trial of a future rotavirus vaccine. METHODS: Data from a population census, incidence rates of diarrhea from a previous cholera vaccine trial and hospitalization rates from computerized records collected from the 2 main hospitals in the province were reviewed to estimate the burden of rotavirus-related diarrhea that might be expected during a field trial of a rotavirus vaccine. RESULTS: For a birth cohort of approximately 5000 children, we would expect approximately 2500 clinic visits and 650-850 hospitalizations for treatment of diarrhea, of which approximately 375-425 would be attributable to rotavirus. For the Vietnamese birth cohort of 1,639,000 children, these numbers translate into approximately 820,000 clinic visits, 122,000-140,000 hospitalizations and 2900-5400 deaths annually attributable to rotavirus-related diarrhea. CONCLUSIONS: Vietnam is an early adaptor of new vaccines, has high national coverage rates (>85%) for childhood immunization and receives international donor support for the introduction of new vaccines. We found the epidemiologic features of rotavirus in rural Vietnam to be more similar to those of rotavirus in a developed country than to those of rotavirus in India or Bangladesh.

Child, Preschool↗
PubMed2004

Community childhood injury surveillance: an emergency department-based model.

OBJECTIVE: To describe the use of an emergency department (ED)-based injury surveillance model to determine the incidence and mechanisms of nonfatal injuries among children living in Cabrini Green, a poor urban community. METHODS: Using ED records and census data, population-based injury rates were determined for a retrospective cohort of children, 0 to 14 years old, (N = 3908) with nonfatal injuries resulting in ED treatment between January 1994 and December 1998. RESULTS: There were 1950 nonfatal injuries during the 5-year study period (annual injury incidence of 998/10,000). Age-specific rates (per 10,000 per year) were 899 among 0- to 4-year olds, 616 among 5- to 9-year olds, and 435 among 10- to 14-year olds. Sixty-three percent were male. The most common injury mechanisms were falls (339/10,000 per year), being struck by/against an object (201/10,000 per year), and being cut/pierced by an object (87/10,000 per year). Falls from a building window (2/10,000 per year) were infrequent. The incidence of housefire-related burns was 1.5/10,000 per year. Intentional injuries included alleged child abuse, 43/10,000 per year, and assaults, 30/10,000 per year. The assault rate among 10- to 14-year-old males was 100/10,000 per year. One hundred thirty-four children were admitted to the hospital (average annual rate of 69/10,000). The most frequent admission diagnoses were falls (22/10,000) among 0- to 9-year olds and assaults (13/10,000) among 10- to 14-year olds. CONCLUSION: An ED-based injury surveillance system can provide an efficient and useful way to determine injury incidence in a defined urban community. The data suggest that rates of violence-related injuries were high, while rates of window falls and housefires were low. These data have allowed targeted injury prevention efforts in Cabrini Green, and future surveillance will allow the evaluation of injury prevention activities.

Accidental Falls↗
PubMed2007

Adult mortality and erosion of household viability in AIDS-afflicted towns, estates, and villages in eastern Zimbabwe.

BACKGROUND: Households form the basic social and economic building blocks of sub-Saharan African societies. Household viability is threatened by sustained crisis-level mortality in widely disseminated HIV epidemics. This article describes the impact of adult deaths on households in small towns, estates, and villages in eastern Zimbabwe. METHODS: A stratified baseline household census was conducted, and 9842 adults were interviewed, tested for HIV infection, and followed up after 3 years. For 374 (93%) of 404 respondents who died, verbal autopsies were conducted with caregivers and data were collected on income foregone, health care and funeral expenditure, and household dissolution and relocation. The household impact of AIDS and non-AIDS deaths was compared. RESULTS: Deaths occurred disproportionately in more urban and low-income households, with AIDS deaths more often resulting in the loss of the household head (57% vs. 46%, adjusted odds ratio [AOR] = 2.47; P = 0.003). The median gross expenditure on health care and funerals was 25 US dollars (interquartile ratio [IQR]: 5-88) and 73 US dollars (IQR: 43-128), respectively, with external contributions being substantial for funerals (25 US dollars, IQR: 10-54). Households with AIDS deaths spent more on health care (incidence rate ratio = 1.83; 95% confidence interval: 1.06 to 3.15) and had more frequently dissolved or relocated (39% vs. 27%, AOR = 1.87; P = 0.038) than those with non-AIDS deaths. Households migrated disproportionately to rural villages. CONCLUSION: Despite the extended family system, adult deaths undermine the viability of sub-Saharan African households. HIV epidemics have greatly increased adult mortality, and AIDS deaths can be particularly destabilizing.

Acquired Immunodeficiency Syndrome↗
PubMed2005

In-hospital care pathway delays: gender and myocardial infarction.

AIM: This paper reports the in-hospital findings of a study identifying gender specific care pathway delays or treatment opportunities amongst Irish women and men hospitalized with myocardial infarction. BACKGROUND: Reperfusion therapy is of optimum benefit when administered early, yet research shows that women continue to experience greater in-hospital delays to treatment than men. METHOD: A 1-year prospective census was carried out from December 2001 to November 2002 with 277 (31%) female and 613 (69%) male patients with myocardial infarction who were consecutively admitted to the six major teaching hospitals in Dublin, Ireland. RESULTS: Women experienced greater 'Triage to first medical assessment' delays than men (P=0.001), and waited a median of 30 minutes for their first medical contact, compared with 20 minutes for men (P<0.0001). The median 'door to needle' time for women was 70 minutes in comparison with 52 minutes for men (P=0.02). Women waited longer than men for aspirin (P=0.02), whilst men received a bed in the coronary care unit almost 1 hour sooner than women (P<0.0001). Despite these delays to treatment, women and men experienced similar rates of reperfusion treatment. CONCLUSIONS: In-hospital treatment delays experienced by women may limit their potential to achieve the maximum benefits from reperfusion therapies. Triage nursing provides the first entry point to hospital care for the majority of female patients with myocardial infarction, and therefore Accident and Emergency Department nurses are in an optimum position to influence positively the pathway of care for this group.

Angioplasty, Balloon, Coronary↗
PubMed2006

Prehospital care pathway delays: gender and myocardial infarction.

AIM: This paper reports the findings of a study that identified gender specific prehospital care pathway delays amongst Irish women and men with myocardial infarction. BACKGROUND: Women are more likely to experience a poorer prognosis than their male counterparts following hospitalization for myocardial infarction, yet research shows that women continue to experience prehospital care pathway delays. METHODS: A 1-year prospective census was carried in six major academic teaching hospitals in Dublin, Ireland in 2001-2002. A total of 277 (31%) female and 613 (69%) male patients with confirmed myocardial infarction were included in the study. RESULTS: Women were more likely to experience prolonged 'initial symptom-onset to A&E delays' (14 hours vs. 2.8 hours P < 0.0001), and 'intense symptom-onset to A&E delays' (3.1 hours vs. 1.8 hours , P < 0.0001), i.e. arrival at a hospital accident and emergency department. Advancing age was associated with greater prehospital delays (P < 0.0001), whilst patients with private health insurance had shorter delays than public patients (without private health insurance) or those with medical cards (entitling them to means-tested medical benefits) (P = 0.001). Patients who drove themselves by car to hospital had shorter median prehospital times than those arriving by any other admission mode (P < 0.0001), whilst those referred by their general practitioner had longer delays than those who were self-referred (5 hours vs. 1.7 hours, P < 0.0001). CONCLUSIONS: Female gender, advancing age, referral source, insurance status and mode of transport to hospital are independent factors contributing to prehospital patient delays. Nurses who care for patients with coronary artery disease have a unique opportunity to educate people about the most appropriate action to be taken in the event of experiencing symptoms.

Age Factors↗
PubMed2001

Potential benefits of restrictions on the transport of teenage passengers by 16 and 17 year old drivers.

OBJECTIVES: The presence of passengers is associated with fatal motor vehicle crashes of teenage drivers. A restriction against newly licensed teenage drivers carrying passengers has been included in some, but not all, graduated licensing systems. The purpose of this study was to predict the net effects on all types of road users, including vehicle occupants and non-occupants, of possible prohibitions against 16-17 year old drivers carrying passengers. METHODS: Two national datasets, a census of fatal crashes and a sample of trips in the United States, were used to compute 1995 road user death rates. Potential effects of restrictions on drivers ages 16-17 carrying passengers younger than 20 were estimated, based on road user death rates and potential choices made by passengers who would have traveled with 16-17 year old drivers if there were no restrictions. RESULTS: There were 1,181 road user deaths in 1995 involving drivers ages 16-17 whose passengers were all younger than age 20. The predicted number of lives in the United States that would be saved annually ranges from 83 to 493 (corresponding to reductions of 7-42% in road user deaths) for drivers ages 16 and 17 combined. Similar percentages of reductions (8-44%) were predicted solely for 16 year old drivers. Assuming passenger restrictions would apply to all 16 year old drivers and at least one third of 17 year old drivers, an estimated 60-344 fewer deaths per year may occur if restrictions are mandated. CONCLUSIONS: Restrictions on carrying passengers younger than 20 should be considered for inclusion in graduated licensing systems. Even if fewer than half the drivers obey the restrictions, a substantial reduction in road user deaths would be expected. Further evaluation based on real world experience is needed to confirm their efficacy.

Accidents, Traffic↗