Table 2 Observed and expected numbers of deaths (all causes) and standardised mortality ratios (SMR) in the whole cohort and the substrata during the follow-up period 1990–2001.
covariable | category | observed deaths | expected deaths | SMR | 95%-CI* |
|---|---|---|---|---|---|
whole cohort |  | 1657 | 1960.09 | 0.85 | 0.81–0.89 |
Sex | male | 870 | 976.59 | 0.89 | 0.83–0.95 |
|  | female | 787 | 983.47 | 0.81 | 0.75–0.86 |
Age group | 15–39 | 168 | 160.89 | 1.04 | 0.90–1.21 |
|  | 40–64 | 562 | 613.67 | 0.92 | 0.84–0.99 |
|  | 65+ | 927 | 1185.50 | 0.78 | 0.73–0.83 |
duration of stay | <5 years | 958 | 1091.01 | 0.88 | 0.82–0.94 |
|  | 5–8 years | 594 | 747.43 | 0.79 | 0.73–0.86 |
|  | >8 years | 105 | 121.62 | 0.86 | 0.71–1.05 |
study period | 1990–1993 | 132 | 204.60 | 0.65 | 0.54–0.77 |
|  | 1994–1997 | 519 | 629.08 | 0.83 | 0.76–0.90 |
|  | 1998–2002 | 1006 | 1126.38 | 0.89 | 0.84–0.95 |
year of arrival | 1990–1993 | 958 | 1247.33 | 0.77 | 0.72–0.82 |
|  | 1994–1997 | 553 | 570.21 | 0.97 | 0.89–1.05 |
|  | 1998–2001 | 146 | 142.51 | 1.02 | 0.87–1.20 |
family size at arrival | single | 279 | 348.12 | 0.80 | 0.71–0.90 |
|  | 2 to 4 | 1209 | 1343.33 | 0.90 | 0.85–0.95 |
|  | 5+ | 169 | 268.60 | 0.63 | 0.54–0.73 |
size of first city of residence | >100,000 | 643 | 753.82 | 0.85 | 0.79–0.92 |
|  | <100,000 | 1014 | 1206.24 | 0.84 | 0.79–0.89 |