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At least 19 recordsLinked to original sources
PubMed1987

Population registers and population statistics.

The authors examine the use of population registers in the production of demographic statistics. "To do this, we first describe these registers; we then examine their further development as an independent source of population statistics--including current population estimates, vital and migration statistics--and as an alternative to population censuses. In conclusion, we consider a number of essential features of registers, including the original collection of data, the system's lifetime, privacy protection, and the government's ability to bring about a balance among conflicting interests regarding the collection and use of the data." The discussion is illustrated using examples from the Netherlands and Denmark.

Censuses↗
PubMed1996

[Comparison of the results from the population registers on January 1, 1995, with those obtained from the continuous population system].

"According to the enumeration from the municipal population registers of 1 January 1995 the Netherlands numbered 371 persons more than calculated [using] the continuous population system. The number of non-Dutch nationals however was 18 thousand (2.3%) and the number of foreign born persons 10 thousand (0.7%) lower. The causes of these differences are not fully known. The census of the municipal population registers of 1 January 1995 has in particular adjusted the file of non-Dutch nationals based on the continuous population system." (SUMMARY IN ENG)

Data Collection↗
PubMed1989

Population registers: some administrative and statistical pros and cons.

The advantages and disadvantages of introducing a central population register are discussed in the context of the United Kingdom. The discussion covers a range of issues, including "justice, fairness, freedom, privacy, efficiency, the fight against crime and fraud, and relations between the government and the community." The author describes the use of population registers in other European countries, the statistical implications of better population registers, the various population records that do exist in the United Kingdom, and the proposal to introduce identity cards in Australia. A summary of a discussion that took place following presentation of the paper at the Royal Statistical Society is included (pp. 28-41).

Data Collection↗
PubMed2002

Management of heart failure in primary health care. A retrospective study on electronic patient records in a registered population.

OBJECTIVE: To study the prevalence, patient characteristics and management of patients with heart failure, and the feasibility of using everyday electronic patient records for research. DESIGN: A 4-year retrospective database study. SETTING: Primary health care in Stockholm. SUBJECTS: Forty-six general practitioners, with a registered population of 100,222 inhabitants. MAIN OUTCOME MEASURES: Number of patients with heart failure, frequencies of their comorbidity, investigations and treatments. RESULTS: Out of the registered population, 667 (0.7%) patients had the diagnosis heart failure and fulfilled the diagnostic criteria in our study, and 98.7% had a comorbidity. The most frequent were ischaemic heart disease (37.2%), hypertension (27.3%), chronic atrial fibrillation (23.7%) and diabetes (22.3%). Major investigations were chest radiograph (66.3%) and echocardiograph (16.9%). Frequent pharmacological treatments were diuretics (90.9%), cardiac glycosides (48.1%), platelet aggregation inhibitors (32.7%), vasodilators (31.6%), angiotensin-converting enzyme inhibitors (27.4%) and beta blockers (14.5%). Diuretics were more frequent for females (p = 0.016) and angiotensin-converting enzyme inhibitors for males (p < 0.001). CONCLUSION: Heart failure was common among the elderly and constituted a complex clinical problem. It seemed that these patients could have been managed more adequately. There were gender differences concerning comorbidity and management. Electronic patient records were feasible for research, although several areas needed improvement.

Aged↗
PubMed1996

Estimating the point accuracy of population registers using capture-recapture methods in Scotland.

STUDY OBJECTIVE: To estimate the point accuracy of adult registration on the community health index (CHI) by comparing it with the electoral register (ER) and the community charge register (CCR). DESIGN: Survey of overlapping samples from three registers to ascertain whether respondents were living at the addresses given on the registers, analysed by capture-recapture methods. SETTING: Aberdeen North and South parliamentary constituencies. PARTICIPANTS: Random samples of adult registrants aged at least 18 years from the CHI (n = 1000), ER (n = 998), and CCR (n = 956). MAIN RESULTS: Estimated sensitivities (the proportions of the target population registered at the address where they live) were: CHI--84.6% (95% confidence limits 82.4%, 86.7%); ER--90.0% (87.5%, 92.5%), and CCR--87.7% (85.3%, 90.3%). Positive predictive values (the proportions of registrants who were living at their stated addresses) were: CHI--84.6% (82.2%, 87.0%); ER--94.0% (90.9%, 97.1%), and CCR--93.7% (91.7%, 95.7%). CONCLUSIONS: The CHI assessed in this study was significantly less sensitive and predictive than the corresponding ER and CCR. Capture-recapture methods are effective in assessing the accuracy of population registers.

Adult↗
PubMed1998

[Decile distribution of risk of mortality from ischemic cardiopathy in the male population registered at a health care center].

OBJECTIVE: To distribute the male population registered at our health centre into deciles of risk of death from ischaemic heart disease, using only the data in the clinical history. DESIGN: A crossover, retrospective and observational study, without random distribution. SETTING: Urban health centre. PATIENTS AND OTHER PARTICIPANTS: The work material was 2848 clinical histories of men aged between 25 and 55 1420 of these were histories with up-to-date data because the men had had a consultation during the preceding year. MEASUREMENTS AND MAIN RESULTS: The method proposed by Shaper to evaluate cardiovascular risk was used. The most prevalent risk factor was tobacco dependency, at 50.1% (CI 95%, 47.5-52.7), whereas hypertension and diabetes did not exceed 14.1% (CI, 12.3-15.9) and 2.5% (CI, 0.016-3.31), respectively, 90% of those under 35 were in the 10-30 deciles, while about half the over-45s were in the 40-90 deciles. CONCLUSIONS: Use of the Shaper method enabled us to distribute our male patients according to risk and identify 4% (2.56-5.37) as being at high risk of ischaemic heart disease.

Adult↗
PubMed2003

[Possibilities for anonymous follow-up studies of patients in Dutch national medical registrations using the Municipal Population Register: a pilot study].

OBJECTIVE: To examine the feasibility of using information from the Dutch Municipal Population Register (Dutch acronym: GBA) to anonymously track groups of patients. DESIGN: Exploratory. METHOD: Using a random sample from the Dutch National Medical Register (Dutch acronym: LMR), hospital admission with discharge in January 1996, it was determined to what extent the admission records could be linked to the GBA. The following variables were used in the linking process: date of birth, gender and the numerical part (4 digits) of the postal code. Once a record had been linked to a single record in the GBA, the pattern of moving and mortality over the next two years was investigated. RESULTS: Of the 124,598 different hospitalisation records in the LMR cohort, 84% could be linked with a single record in the GBA. In 11% of the patients no unique link was possible: one hospital record could be linked to several records in the GBA. No matching record could be found for 5% of the patients; some of these were foreign citizens resident in the Netherlands. Two years after discharge, the cumulative mortality was 44% for cancer patients, 28% for patients with acute myocardial infarction, 57% for patients with heart failure and 20% for patients with respiratory diseases. Eleven percent of the patients moved within the two-year period following discharge. This would have caused a considerable bias in the aforementioned mortality rates, if the patients' migration had meant that they could no longer be followed. CONCLUSION: The introduction of the GBA has significantly increased the possibilities for following patients within and between registries. A prerequisite for this is a unique and correct identification of an individual within the GBA.

Adolescent↗
PubMed1993

[Enumeration from municipal population registers, January 1, 1992. Main results].

"On 1 January 1992 the Netherlands Central Bureau for Statistics carried out an enumeration from computerized municipal population registers. For each inhabitant the following data were collected: municipality of residence; sex; year of birth; family status; family formation; address; nuclear family number; marital status; year of most recent change of marital status; nationality; country of birth; father's country of birth; mother's country of birth; [and] year of most recent settlement in the Netherlands." The focus is on changes in family composition. (SUMMARY IN ENG)

Demography↗
PubMed2005

Occupational magnetic fields and female breast cancer: a case-control study using Swedish population registers and new exposure data.

Several recent epidemiologic studies on occupational magnetic field exposure have suggested an association with female breast cancer. The purpose of this study was to test this hypothesis by using the extensive Swedish population registers in combination with improved exposure assessment. The study base consisted of all women between 1976 and 1999 gainfully employed in Stockholm or Gotland County in Sweden. A total of 20,400 cases of breast cancer were identified from the cancer registry, and 116,227 controls were selected randomly from the study base. Information was available on estrogen receptor status, occupation, socioeconomic status, and age. Parity was available for a subset. The exposure was assessed by linkage to a newly developed job-exposure matrix based on personal magnetic field measurements on women. All risk estimates were close to unity regardless of exposure cutpoint or choice of exposure parameter. The overall odds ratio for women exposed to 0.30 microT or more was 1.01 (95% confidence interval: 0.93, 1.10). The size of the study allowed for estimates with good precision also in subgroups where previous studies have suggested increased risk, but the findings do not support the hypothesis that magnetic fields influence the risk of female breast cancer.

Adult↗
PubMedDate not supplied

[Methodology of studying health based on population register].

Morbidity among the Moscow population receiving medical care at clinical hospital No. 85 and among workers, particularly those occupationally exposed to harmful factors, has been studied using an original system of automated processing of medical statistical information. The structure and incidence of the major groups of diseases has been studied in comparison with the mean data for Moscow. Total morbidity of adults and adolescents in 1998 was 1408/1000, which is close to the level for the whole Moscow (1396/1000). Morbidity among men was 1249/1000, which is lower than among women (1595/1000), while the incidence of diseases with temporary disability, primary invalidity, and mortality are higher among men. Population health is better in a relatively closed and socially protected population attached to a single institution in Moscow than in Russia in general; specifically, the incidence of infectious diseases and injuries is lower.

Adolescent↗
PubMed2004

Anticoagulant treatment of patients with chronic atrial fibrillation in primary health care in Sweden--a retrospective study of incidence and quality in a registered population.

BACKGROUND: The number of patients receiving anticoagulant treatment is increasing. Chronic atrial fibrillation is the most common treatment diagnosis. The literature indicates a variable level of treatment control. Estimates of time within the therapeutic range have been recommended as a measurement of quality. Electronic patient records are providing clinical data that are useful for audits concerning anticoagulant treatment in real-life practice. OBJECTIVE: Our aim was to assess warfarin treatment for chronic atrial fibrillation in primary health care with regard to prevalence, incidence and quality. METHODS: A 2 year retrospective study was carried out of electronic patient records up to April 2002 in primary health care in Stockholm, including 12 primary health care centres with a registered population of 203 407. Main outcome measures were the number of new patients on wafarin treatment for chronic atrial fibrillation, and time within the therapeutic prothrombin range in the first 90 days of treatment using a linear interpolation method. RESULTS: In total, 827 patients were on warfarin treatment for chronic atrial fibrillation, giving a prevalence of 0.41%. Of these, 144 patients (study group) started treatment with warfarin for chronic atrial fibrillation during the study period, giving a yearly incidence of 0.07%. Their mean age was 73.1 years and 61.1% were men. There were 1721 prothrombin monitoring episodes registered in the first 90 days of treatment, on average once a week per patient. The average proportion of time within the therapeutic range was 54.1% (95% confidence interval (CI) 50.1-58.1), and the proportion of therapeutic tests was 50.2% (95% CI 47.8-52.6). CONCLUSIONS: During the first, second and third months of warfarin treatment for chronic atrial fibrillation, patients were outside the therapeutic range time nearly half the time. There was a gender difference favouring men regarding initiation of treatment.

Adolescent↗
PubMed2003

Anticoagulant treatment in primary health care in Sweden - prevalence, incidence and treatment diagnosis: a retrospective study on electronic patient records in a registered population.

BACKGROUND: The indications for warfarin treatment in primary health care are increasing. An undertreatment with warfarin is reported in the prevention of embolic stroke in patients with chronic atrial fibrillation, and can be suspected for other indications. Information on the prevalence and incidence of diseases treated with warfarin would reveal useful data for audits concerning management of anticoagulant treatment. We aimed to assess warfarin treatment in primary health care with regard to prevalence, incidence, treatment diagnosis and patient characteristics. METHODS: A one-year retrospective study of electronic patient records up to May 2000 in primary health care in Stockholm, Sweden. Five primary health care centres with a registered population of 75 146. Main outcome measures were prevalence, incidence and treatment diagnosis. RESULTS: Five hundred and seven patients, mean age 71.9 years, were on warfarin treatment. The prevalence was 0.67% (age-adjusted 0.75%), and it was significantly higher for men (0.78%) than for women (0.58%) (p = 0.01). In the age group 75-84 years the prevalence was 4.54%. The most prevalent treatment diagnosis was chronic atrial fibrillation (0.28%), which was more predominant for males (p = 0.02), followed by cerebrovascular disease (0.13%) and deep venous thrombosis (0.13%). The yearly incidence of warfarin treatment was 0.17%, with chronic atrial fibrillation as the predominant treatment diagnosis. CONCLUSION: Warfarin treatment in primary health care is prevalent among the elderly. Chronic atrial fibrillation is the main treatment diagnosis. There is a gender difference favouring men in general and chronic atrial fibrillation as the treatment diagnosis.

Adult↗
PubMed1980

The point accuracy of paediatric population registers.

The accurate identification of paediatric populations in primary health care is not being achieved. Fifteen per cent of the children were not at the address given for them on one or more of the three registers studied. Our calculations suggest that a further number of children in the community may appear on none of the three available registers.

Child Health Services↗