TY - JOUR T1 - Deriving relative risks from aggregate data. 2. An application to the relationship between unemployment and suicide. JF - Journal of Epidemiology and Community Health JO - J Epidemiol Community Health SP - 336 LP - 340 DO - 10.1136/jech.42.4.336 VL - 42 IS - 4 AU - T Norström Y1 - 1988/12/01 UR - http://jech.bmj.com/content/42/4/336.abstract N2 - 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. ER -