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Table 4 Rate ratios (RR) and 95% confidence intervals (CI) for all-cause standardised mortality ratios as derived from Poisson regression models which employ the natural logarithm of expected cases as offset term.

From: All-cause and Cardiovascular mortality among ethnic German immigrants from the Former Soviet Union: a cohort study

   univariate multivariate-adjusted
covariable category RR 95%-CI RR 95%-CI
Sex male* 1   1  
  female 0.90 0.82–0.99 0.94 0.85–1.03
Age group 15–39* 1   1  
  40–64 0.88 0.74–1.04 0.88 0.74–1.04
  65+ 0.75 0.64–0.99 0.76 0.64–0.90
duration of stay <5 years* 1   1  
  5–8 years 0.91 0.82–1.00 0.86 0.74–1.00
  >8 years 0.98 0.80–1.20 0.96 0.75–1.23
study period 1990–1993* 1   1  
  1994–1997 1.28 1.06–1.55 1.27 1.04–1.55
  1998–2002 1.38 1.16–1.67 1.44 1.14–1.83
year of arrival 1990–1993* 1   1  
  1994–1997 1.26 1.13–1.40 1.15 1.01–1.31
  1998–2001 1.33 1.12–1.58 1.11 0.88–1.39
family size single* 1   1  
  2 to 4 1.12 0.99–1.28 1.09 0.96–1.25
  5+ 0.79 0.65–0.95 0.76 0.63–0.92
size of city >100,000* 1   1  
  <100,000 1.01 0.92–1.12 0.99 0.90–1.10
  1. *reference category
  2. the Poisson models only contain the respective covariable
  3. the Poisson model contains all covariables; intercept (baseline log SMR): -0.24 (p = 0.05)