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Table 3 Zero Inflated Negative Binomial model of total work absence 1994–2008. IRR for immigrant versus native Swede

From: Exposure to different lengths of sick leave and subsequent work absence among young adults

Sick leave 1993 Immigrant Mean(SD) Native Swede Mean(SD) Adjusted IRR Immigrant vs Native Swede 95 % CI p-value
Sick leave 1993 Immigrant Mean(SD) Native Swede Mean(SD) Adjusted IRR Immigrant vs Native Swede 95 % CI p-value
0 n = 12059 555 (798) n = 107631 283 (532) 1.59 1.54–1.63 <.0001
1–7 n = 542 759 (884) n = 4298 539 (803) 1.29 1.15–1.46 <.0001
8–14 n = 226 1033 (1136) n = 2077 564 (836) 1.63 1.36–1.97 <.0001
15–28 n = 315 894 (1007) n = 2190 655 (962) 1.32 1.12–1.54 0.0007
29–59 n = 318 1112 (1165) n = 2120 768 (1053) 1.31 1.12–1.53 0.0007
60–89 n = 150 1158 (1270) n = 880 917 (1175) 1.12 0.89–1.41 0.3448
90–119 n = 84 1546 (1441) n = 506 1000 (1219) 1.40 1.03–1.90 0.0294
  1. Adjusted for age, education, origin and county, IRR (Incidence-rate ratio) from the negative binominal part of the model