Table 4.

Hospitalization among recent and longstanding female migrants, relative to native Norwegian women

	Any hospital admission 2008–2011, linear probability models				Number of hospital admissions 2008–2011, Poisson regression models
Immigration period	2005–2007		1970–1989		2005–2007		1970–1989
	B	95%CI	B	95%CI	IRR	95%CI	IRR	95%CI
Constant/reference	0.278	0.277/0.280	0.278	0.277/0.280	1		1
Migrants all regions	0.021	0.013/0.029	−0.009	−0.014/−0.004	0.778	0.731/0.829	0.926	0.894/0.958
Migrants classified by region origin
Western countries	−0.000	−0.015/0.014	−0.036	−0.044/−0.028	0.771	0.667/0.891	0.812	0.765/0.862
EU East Europe	−0.057	−0.074/−0.039	−0.029	−0.049/−0.009	0.517	0.437/0.611	0.840	0.723/0.977
Other East Europe	0.044	0.020/0.068	0.016	−0.014/0.046	0.742	0.617/0.893	1.149	0.936/1.409
Africa	0.131	0.105/0.157	0.009	−0.012/0.030	1.193	1.035/1.374	1.007	0.873/1.161
West & South Asia	0.130	0.099/0.161	0.046	0.034/0.058	1.036	0.867/1.238	1.256	1.175/1343
Other Asia	0.004	−0.011/0.020	−0.040	−0.050/−0.030	0.744	0.654/0.847	0.769	0.711/0.832
Latin America	0.054	0.018/0.091	0.060	0.040/0.081	0.747	0.584/0.956	1.102	0.984/1.234
R2	0.019		0.019		0.037		0.036
N native Norwegians	1,079,029		1,079,029		1,079,029		1,079,029
N migrants	14,010		31,639		14,010		31,639

Adjusted for four age categories: 30–39, 40–49, 50–59, and 60–69, reference category = 50–59, age coefficients not shown. B = OLS regression coefficient. IRR incidence rate ratio. Exposure variable, Poisson regression: personyears