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At least 19 recordsLinked to original sources
PubMed1992

Projections of households and household populations by household size propensities.

"This paper describes a method for constructing projections of numbers of households of various types and the numbers of people in that structure. The method uses the concept of household size propensity.... Using data from the 1981 and 1986 Censuses and population projections to the year 2011, the method produces projections of Australian households and household populations by size of household for five-year intervals from 1991 to 2011."

Age Factors↗
PubMed2026

Assessment of differentially culturable tubercle bacteria assays for the detection of tuberculosis infection in asymptomatic household contacts and the implications for intra-household transmission: a longitudinal cohort study.

BACKGROUND: Conventional culture methods for tuberculosis diagnosis miss differentially culturable tubercle bacteria (DCTB), which grow only in liquid assays supplemented with growth-enhancing factors. This limitation, combined with inadequate contact tracing and screening, often fails to identify asymptomatic individuals, with live bacilli detectable by enhanced culture methods. This shortfall results in undiagnosed reservoirs of bacteria, potentially fuelling ongoing transmission. In this study, we aimed to investigate whether DCTB assays provide greater sensitivity by detecting more Mycobacterium tuberculosis infections than conventional culture and whether this enhanced detection improves the resolution of intrahousehold transmission mapping. In addition, we sought to evaluate whether DCTB populations can progress to conventional culture positivity, thereby highlighting their clinical and epidemiological relevance. METHODS: In this prospective observational longitudinal cohort study, drug-susceptible or rifampicin-resistant tuberculosis index participants aged 12 years or older, were recruited from primary healthcare clinics from two South African districts. Inclusion criteria were informed consent, Xpert MTB/RIF Ultra-positive results, tuberculosis symptoms (>2 weeks), provision of baseline samples, at least one consenting household contact, and documented HIV status. Household contacts of the index patients and control households were also recruited. Sputum specimens were collected at baseline and 2, 4, 8, 12, and 16 months from the index participants and household contacts. Samples were analysed by conventional mycobacterial growth indicator tube (MGIT) culture, and colony-forming unit assays to identify viable bacteria. Enhanced culture to detect DCTB involved serial dilution of sputum in liquid culture, supplemented with M tuberculosis culture filtrate as a source of growth stimulatory factors. Whole-genome sequencing (WGS) of cultured isolates was performed to trace household transmission. FINDINGS: Between June 1, 2020, and Feb 6, 2024, 293 index participants (183 [62%] male), 701 household contacts (453 [65%] female), and 122 control participants (67 [55%] female) were enrolled. At baseline, 249 (85%) of 293 index participants and 110 (16%) of 701 household contact sputum samples were positive for M tuberculosis by MGIT conventional culture. For baseline MGIT-negative specimens, DCTB assays detected M tuberculosis in an additional 21 (7%) of 293 index participants and 26 (4%) of 701 household contacts. Over 16 months of follow-up, DCTB assays identified 61 (8·7%) of 701 additional tuberculosis-positive household contacts not detected by conventional culture. WGS-guided transmission mapping using conventional culture identified transmission in 16 (15%) of 104 households, whereas DCTB assays detected an additional 19 (18%) of 104 transmission events. No evidence of intrahousehold transmission was found in the remaining 69 (66%) of 104 tuberculosis-positive households. Over the 16-month follow-up period, conventional culture identified 233 positive household contacts, of which 195 (84%) were asymptomatic. DCTB assays detected an additional 94 cases of M tuberculosis positivity in household contacts, of which 79 (84%) were asymptomatic. In control households, tuberculosis prevalence at baseline was two (2%) of 122, with an additional three (3%) of 122 identified during follow-up. INTERPRETATION: DCTB assays provide substantial value by detecting asymptomatic individuals missed by conventional culture, revealing a potentially important reservoir of subclinical infection, which could sustain transmission. In addition, DCTB detection uncovers transmission linkages missed by conventional culture, providing a more comprehensive understanding of M tuberculosis transmission dynamics and highlighting the need to incorporate enhanced culture methods into diagnostic and surveillance strategies, to strengthen early case identification and tuberculosis control efforts. FUNDING: National Institutes of Health.

Humans↗
PubMed2003

Household smoking bans: which households have them and do they work?

BACKGROUND: This study characterized Oregon households according to type and degree of restrictions on smoking and explored whether smoking restrictions are associated with decreased environmental tobacco smoke (ETS) exposure. METHODS: A population-based, random-digit-dialed cross-sectional telephone survey of 6,199 adult Oregonians was performed in 1997 to provide baseline data on tobacco use in Oregon. RESULTS: Seventy percent of Oregon households were composed of nonsmokers only, and 85% of those had a full ban on smoking inside the home. Of the households containing one or more smokers, 38% had a full household ban on smoking. Among respondents with a full ban in place, 99% of nonsmoker-only households reported that no one smoked in the home in the previous month, compared with 91% of households with at least one smoker. In both nonsmoker-only households and those with at least one smoker, full bans were strongly associated with awareness of the harm of ETS (OR = 12.8, 95% CI 7.3-22.3, and OR = 6.6, 95% CI 3.6-12.3, respectively). The presence of children in the household was also closely associated with full bans in the two types of households (OR = 4.6, 95% CI 2.8-7.6, and OR = 3.0, 95% CI 2.1-4.4, respectively). Nevertheless, 50% of households with children and a smoker present did not have a full ban in place. CONCLUSIONS: While the prevalence of household smoking restrictions is high in Oregon, there remains room for improvement, since 50% of households with a smoker and a child present do not have a full ban on indoor smoking. Public health messages that focus on household smoking restrictions may help protect nonsmokers from exposure to ETS.

Adult↗
PubMed2002

The underweight/overweight household: an exploration of household sociodemographic and dietary factors in China.

OBJECTIVE: The goal of this paper is to explore the hypothesis that the nutrition transition is related to households having an underweight and an overweight member simultaneously (under/over households and under/over pairs). DESIGN: The 1993 China Health and Nutrition Survey (CHNS) was used to test the association between being an under/over household and household characteristics related to the nutrition transition. Sociodemographic and diet patterns were tested for the main age combinations of the under/over pairs. SETTING: In China, 8.1% of all households were found to have underweight and overweight members within the same household. SUBJECTS: Results are from the 1993 China Health and Nutrition Survey and are based on a sample of 13814 persons from 3340 households. RESULTS: The under/over household was more urban, had a higher income and was more likely to have assets such as a television, a motor vehicle and a washing machine, even after controlling for sociodemographic confounders. The under/over household had a diet that was higher in fat and protein compared with the underweight and normal weight households. There were no significant differences between the under/over and overweight households, with many of the associations near unity. Comparisons of the under/over subgroups by age of the under/over pairs showed some differences by income and occupation, but not for diet. CONCLUSIONS: It is imperative, as more individuals become exposed to the diet and lifestyle patterns of the nutrition transition, to find effective public health programmes that can simultaneously promote a healthy lifestyle, improve diet quality and address both undernutrition and chronic disease.

Adolescent↗
PubMed2003

Socioeconomic status and tobacco expenditure among Australian households: results from the 1998-99 Household Expenditure Survey.

OBJECTIVE: To investigate the relation between socioeconomic status (SES) and tobacco expenditure among Australian households. DESIGN AND SETTING: Cross sectional study (The Household Expenditure Survey 1998-99) by the Australian Bureau of Statistics, based on a multi-stage national sample of 9682 households. PARTICIPANTS: From selected households, all members aged 15 and over were interviewed. MAIN RESULTS: Lower SES was associated with higher odds of reporting tobacco expenditure. Among smoking households, those from lower SES spent more of their funds on tobacco. For example, households headed by a person with no educational qualification spent 34% more on tobacco than those headed by a person with a university degree. Blue collar households spent 23% more than professional households. Percentage of total household expenditure on tobacco in the first income quintile was 62% more than that of households in the fifth quintile. CONCLUSION: Antismoking interventions and policies that are specifically aimed at lower SES groups can potentially improve social equality. They can also ameliorate social inequalities in health, given that much of the SES differentials in morbidity and mortality are attributed to the pronounced SES gradient in smoking.

Adolescent↗
PubMed1985

The household-composition matrix as a notion in multiregional forecasting of population and households.

"The household-composition matrix has been used in the past for single-region projection of population and households; here the application is expanded to multiregional projection of population and households. Geographic regions of residence are considered as household categories, and a household-composition matrix is constructed to indicate average numbers of persons by age per household, for each of the regions considered." The method is illustrated using data for the city of Edmonton, Canada. Changes over time due to population aging and to observed patterns of household mobility are considered. "These patterns are listed as six possible household mobility types, which in turn, are viewed as constraints within which population growth takes place. With the assumption that external net-migration to the regions, as a whole, is known for a projected period, an iterative procedure is offered to estimate future population by age and region, as well as future number and average size of households by region."

Age Distribution↗
PubMed2004

Differential willingness of household heads to pay community-based health insurance premia for themselves and other household members.

OBJECTIVE: This study compares household heads' willingness-to-pay (WTP) for community-based health insurance (CBI) for themselves with their WTP for other household members, in order to provide information for policy makers on setting the premium and choosing the enrollment unit. METHOD: A random sample of 698 heads of households was interviewed in the northwest of Burkina Faso and a bidding game approach was used to elicit WTP. Factors associated with differences in WTP were identified, including characteristics of the household head and of the household. RESULTS: Mean WTP by the heads of households for insurance for themselves (3575 CFA) was twice their mean WTP per capita for the household as a whole (1759 CFA). The old have a lower WTP than the young, females have lower WTP than males, the poor have a lower WTP than the rich, and that those with less schooling have a lower WTP than those with more years of schooling. CONCLUSION: The differences in household heads' WTP for insurance for themselves and their WTP to insure their households as a whole need to be considered when setting the insurance premium. WTP information can assist decision makers with the complex problem of choosing the enrollment unit and setting the premium.

Burkina Faso↗
PubMed2004

Social class and self-reported health status among men and women: what is the role of work organisation, household material standards and household labour?

Social class understood as social relations of ownership and control over productive assets taps into parts of the social variation in health that are not captured by conventional measures of social stratification. The objectives of this study are to analyse the association between self-reported health status and social class and to examine the role of work organisation, material standards and household labour as potential mediating factors in explaining this association. We used the Barcelona Health Interview Survey, a cross-sectional survey of 10,000 residents of the city's non-institutionalised population in 2000. This was a stratified sample, strata being the 10 districts of the city. The present study was conducted on the working population, aged 16-64 years (2345 men and 1874 women). Social class position was measured with Erik Olin Wright's indicators according to ownership and control over productive assets. The dependent variable was self-reported health status. The independent variables were social class, age, psychosocial and physical working conditions, job insecurity, type of labour contract, number of hours worked per week, possession of appliances at home, as well as household labour (number of hours per week, doing the housework alone and having children, elderly or disabled at home). Several hierarchical logistic regression models were performed by adding different blocks of independent variables. Among men the prevalence of poor reported health was higher among small employers and petit bourgeois, supervisors, semi-skilled (adjusted odds ratio-aOR: 4.92; 95% CI: 1.88-12.88) and unskilled workers (aOR: 7.69; 95%CI: 3.01-19.64). Work organisation and household material standards were associated with poor health status with the exception of number of hours worked per week. Work organisation variables were the main explanatory variables of social class inequalities in health, although material standards also contributed. Among women, only unskilled workers had poorer health status than the referent category of manager and skilled supervisors (aOR: 3.25; 95%CI: 1.37-7.74). All indicators of work organisation and household material standards reached statistical significance, excepting the number of hours worked per week. In contrast to men, among women the number of hours per week of household labour was associated with poor health status (aOR: 1.02; 95% CI: 1.01-1.03). Showing a different pattern from men in the full model, household material deprivation and hours of household labour per week were associated with poor health status among women. Our findings suggest that among men, part of the association between social class positions and poor health can be accounted for psychosocial and physical working conditions and job insecurity. Among women, the association between the worker (non-owner, non-managerial, and un-credentiated) class positions and health is substantially explained by working conditions, material well being at home and amount of household labour.

Adolescent↗
PubMed1988

Households headed by women: income, employment and household organization.

The purpose of this study was to investigate the characteristics of female-headed households in Pakistan. "[A] sample of 680 working women will be used to analyse the economic situation of households headed by women relative to households headed by men. The paper will compare income levels, household size and composition and employment patterns in the two sets of households. Further, the study will also investigate differences in income and employment options within the subset of households headed by women." The poverty of households headed by women was generally found to reflect the disadvantaged position of women in the labor market. Comments by Nahced Aziz are included (pp. 788-90).

Asia↗
PubMed1993

[National Household Forecasts 1993: households by size].

Population projections for household and family size and characteristics in the Netherlands are presented. "The household forecasts are based on a model in which mothers can be paired with their children.... The model is used for the birth generation of women 1930-1995.... According to the household forecasts the Netherlands had 6.2 million households in 1992. In 2010 [there] will be 1.1 million more.... The percentage of single households will rise from 30 to 36 while the percentage of two-person households will be stable at 31%. The percentage of households with three or more persons will decrease from 39 to 33." (SUMMARY IN ENG)

Developed Countries↗
PubMed1995

[From minimal household units to household projections: an application to Canadian data].

"The headship rate method for household projections has been criticised for its silence concerning household composition, while alternative models have yet to resolve how to estimate households from the distribution of individuals by household status projected by their models. By combining an indicator of household composition with an indicator of headship, the method proposed here attempts to remedy these problems. The application to Canadian households could be viewed as an adaptation of the headship rate method, but would ideally serve as the second step of a model more representative of the household formation process." (SUMMARY IN ENG AND SPA)

Americas↗
PubMed2002

Measuring household food security in poor Venezuelan households.

OBJECTIVE: To validate abbreviated methods that estimate food security level among poor communities in Caracas, Venezuela. DESIGN: Two independent cross-sectional studies were undertaken to internally and externally validate simple quantitative/qualitative methods. The quantitative measure was constructed from data on household food availability, gathered using the list-recall method. It is a count of the foods that explain 85% or more of household energy availability. The qualitative measure is a score of female-perceived food insecurity level estimated with a modified 'hunger index', reflecting food resource constraints and hunger experiences within the home. Socio-economic and food behaviour data that may predict household food security (HFS) levels were gathered. The second study was repeated a year later to measure the impact of an increase in the minimum wage on HFS levels. SETTING: Two poor urban communities in Caracas, Venezuela. SUBJECTS: All households in both communities that complied with selection criteria(poor and very poor families that share food resources) and were willing to participate. The sample comprised 238 and 155 female household food managers in the two communities. RESULTS: In 1995, data from females in 238 urban poor households provided evidence for the overall validity of the method. Its application in 1997 to 155 households in the other community gave support to the external validity of the method. Measures were repeated in 1998 on 133 subjects of the above sample, when the minimum wage was increased by 23%. Evidence is presented showing the sensitivity of the method to changes in the determinants of HFS. Data analysed during these three periods suggest that the method can be simplified further by using the food diversity score instead of the quantitative measure since these variables correlate highly with one another(r > or = 2 0.854). CONCLUSIONS: This simple method is a valid and precise measure of food security among poor urban households in Caracas. Th equalitative/quantitative measures complement each other as they capture different dimensions of HFS.

Cross-Sectional Studies↗
PubMed1991

Household clustering and intra-household transmission patterns of hepatitis B virus infection in South Africa.

The objective of this study was to investigate household clustering of hepatitis B virus (HBV) infection in South Africa in order to understand intra-household patterns of virus transmission that would provide information on potential risk factors of HBV infection. Subjects were the household contacts of 28 hepatitis B surface antigen (HBsAg) positive children (index-carrier), 22 hepatitis B surface antibody positive children (index-past-infection) and 35 children with no serological evidence of HBV infection (index-negative). Evidence of HBV infection (at least one positive HBV marker) was present in 73.7%, 48.7% and 38.2% and HBsAg was present in 19.9%, 8.7% and 2.9% of household contacts of index-carrier (N = 186), index-past-infection (N = 150) and index-negative (N = 207) children respectively. The clustering of HBV infection and HBsAg was present in all subgroups of household contacts regardless of the degree of relatedness to the index child. As age increased, the cumulative prevalence of HBV infection increased while the likelihood of being HBsAg positive decreased. Regardless of age, males were more likely (p less than 0.01) than females to be HBsAg positive. We conclude that HBV infection clusters in households; that there is an increased susceptibility, which is probably not genetically mediated, of becoming an HBV carrier in certain households and that males are at greater risk of being HBV carriers. Intra-household horizontal person-to-person transmission, the precise mechanisms of which are not known, is important in South African blacks.

Adolescent↗
PubMed2004

Children's nutrition in Jamaica: do household structure and household economic resources matter?

This study assesses the influence of household structure and resource dilution characteristics on children's nutritional status in Jamaica. The study has two objectives: (1) to compare the impact of different types of household structures (e.g. single parent, two parent, cohabiting and extended) on child nutrition (low height for age); and (2) to examine whether household structure and household resources interact to affect child nutrition in this context. We use data from the Jamaica 1996 Living Standards Measurement Study Survey and a series of logistic regression models to test hypotheses derived from the current child well-being literature. The results show that living in a single-parent household and a cohabiting household increases the odds of stunting for children. The analysis also indicates that children in single-parent low-income families with siblings and low-income extended families with siblings are more likely to have low height for age. The key policy implication that emerges from this study is that household structure is important for understanding children's nutritional outcomes in the Caribbean.

Body Height↗
PubMed2001

Household food insecurity with hunger is associated with women's food intakes, health and household circumstances.

This study investigated food intake patterns and contextual factors related to household food insecurity with hunger among a sample of 153 women in families seeking charitable food assistance in Toronto. Women in households characterized by food insecurity with severe or moderate hunger over the past 30 d (as assessed by the Food Security Module) reported lower intakes of vegetables and fruit, and meat and alternatives than those in households with no hunger evident. Women were more likely to report household food insecurity with hunger over the past 12 mo and 30 d if they also reported longstanding health problems or activity limitations, or if they were socially isolated. The circumstances that women identified as precipitating acute food shortages in their households included chronically inadequate incomes; the need to meet additional, unusual expenditures; and the need to pay for other services or accumulated debts. Women who reported delaying payments of bills, giving up services, selling or pawning possessions, or sending children elsewhere for a meal when threatened with acute food shortages were more likely to report household food insecurity with hunger. These findings suggest that expenditures on other goods and services were sometimes foregone to free up money for food, but the reverse was also true. Household food insecurity appears inextricably linked to financial insecurity.

Adult↗
PubMed2002

[Tobacco use in Mexican households: results of the Income and Expenses Survey of Households, 1984-2000].

OBJECTIVE: To analyze selected determinants of tobacco consumption in Mexican homes. MATERIAL AND METHODS: Data from the National Household Income and Expenditure Survey, 1984-2000, were analyzed. The analysis was conducted for the years 1984-1992 and 1994-2000. The likelihood of tobacco consumption in households was estimated with a logistic regression model. RESULTS: Tobacco consumption during the first period was two times more likely from decile six (OR = 2.03, 95%, CI: 2.03-2.04) and during the second period from decile eight (OR = 2.06, 95%, CI: 2.05-2.07). Households from decile one spent on average 9-22% of their income on tobacco; almost all of the households from decile ten spent only 1% of their income on tobacco. CONCLUSIONS: Households with higher income consumed more tobacco than households with low income; nevertheless, households with the lowest income devoted a greater proportion of income to tobacco consumption.

Data Collection↗
PubMed1979

Variola minor in Braganca Paulista County, 1956: household aggregation of the disease and the influence of household size on the attack rate.

Household aggregation of cases, one possible characteristic of person-to-person transmitted disease, was formally tested in one epidemic of variola minor by using a pair statistic. A significant result was found for all households as well as for households grouped by the type of environment, or by the phase of the epidemic growth in time. Secondary attack rates, when related to household size (number of susceptibles) showed only a marginal trend in rural households but no trend in urban or semi-rural households.

Brazil↗
PubMed1998

Predicting percentage of individuals consuming foods from percentage of households purchasing foods to improve the use of household budget surveys in estimating food chemical intakes.

OBJECTIVE: To examine the hypothesis that there is sufficient agreement between percentage of households purchasing selected foods using household budget surveys and percentage of individuals consuming these foods as determined in individual-based surveys to allow the former to act as a surrogate for the latter when estimating food chemical intakes using household budget data. DESIGN: Database study. SETTING: Databases from Sweden, The Netherlands. Ireland and the UK. SUBJECTS: 319 foods (Sweden n = 60, The Netherlands n = 80, Ireland n = 90, UK n = 89). RESULTS: Pearson correlations demonstrated a high degree of linear association between % households purchasing and % consumers (r = 0.86). Regression analysis defined a close positive relationship between the two datasets (slope 0.95, intercept +2.74). Across countries, using the regression equation, the % households predicted % consumers to within 5% of the true value for between 33 and 48% of foods and to within 10% for between 53 and 78% of foods. CONCLUSIONS: Values for % households can be used as a crude surrogate for % consumers and can thus play a role in improving estimates of food additive intake.

Adult↗