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T Norström

Publications and source records attributed to T Norström.

8 recordsLinked to original sources
PubMed1991

The structure of IADL and ADL measures: some findings from a Swedish study.

The purpose of this paper is to uncover the dimensional structure of a set of disability items. The analysis is based on a sample of 421 persons aged 75 years and older. Firstly, a factor analysis of the items reveals two distinct dimensions: IADL and ADL. The items with large loadings on the IADL-factor are next submitted to a Guttman analysis. An index is derived which strictly meets the requirements of a Guttman scale, but it is doubtful whether there is a true hierarchical structure among the items. The criterion validity of the index (in different versions) appears to be satisfactory when assessed in terms of the correlation with an outcome variable (home help).

Activities of Daily Living↗
PubMed1991

The utilization of home help in Sweden: a multivariate analysis.

We estimated the effect of a variety of factors on the utilization of home help among the elderly in Sweden using a sample (N = 421) of people 75 years and older. A regression analysis singled out two factors as the most important: physical functioning (instrumental activities of daily living) and living alone. Calculations of attributable fractions substantiated this result. Implications for planning and allocating home help are discussed.

Aged↗
PubMed1989

The use of aggregate data in alcohol epidemiology.

Analyses of aggregate data have the potential of elucidating pivotal issues in alcohol epidemiology, in particular those singled out by the public health perspective, such as the impact of per capita alcohol consumption on various damage rates. This article discusses the possibilities and limitations of the two main approaches in the analysis of aggregate data, focusing upon ecological and time series data, respectively. In addition, a synthetic approach is outlined, which aims at an integration of macro and micro findings. In that context it is shown how effect measures which are normally based on micro data (relative risk and attributable fraction) can be derived from macro data.

Alcoholism↗
PubMed1988

Deriving relative risks from aggregate data. 1. Theory.

Sociological macro analyses of the association between risk factors and mortality can be seen as a valuable supplement to epidemiological micro studies. However, sociologists and epidemiologists typically employ different measures of association and this hampers strict comparisons of findings. This study presents a synthetic approach relying on both micro and macro data. In Part 1, the mathematical relations between the relative risk and the attributable fraction on the one hand, and the regression coefficient on the other are derived in order to make cross level comparisons possible. Part 2 provides an empirical illustration of the approach.

Epidemiologic Methods↗
PubMed1988

Deriving relative risks from aggregate data. 2. An application to the relationship between unemployment and suicide.

In Part 1 of this study, the mathematical relations between micro and macro measures of effect were derived. The formulas thus obtained can be used for cross level comparisons of findings concerning the effect of some specific risk factor on, eg, mortality. The approach is illustrated by means of an empirical example relating to the association between unemployment and suicide. This relationship is estimated on micro data as well as on aggregate time series data. The findings from the two levels are fairly consistent.

Adult↗