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Table 1 Difference in measles vaccination coverage among children born in Norway to Somali immigrants, 2000-2016

From: Measles vaccine coverage among children born to Somali immigrants in Norway

Covariates Group size
n (%)
Percent point difference in coverage 95% confidence intervals p-value
Mother’s time in Norway
  < 2 years 2534 (23) Reference   
 3 to 5 years 3463 (32) −1.0 − 2.7 to 0.7 0.252
  ≥ 6 years 4926 (45) − 6.7 −8.4 to − 5.0 < 0.001
Residential area
 Norway, other 6015 (55) Reference   
 Oslo county 3230 (30) −6.5 −8.0 to −4.9 < 0.001
 Akershus county 1678 (15) −3.4 −5.2 to −1.6 < 0.001
Gender - birth year interaction
 Girlsa   Reference   
 Boys born in 2000 160 (54) 0.8 −2.0 to 3.6 0.571
 Boys born in 2004 248 (47) −0.9 −2.8 to 1.0 0.373
 Boys born in 2008 370 (50) −2.5 −3.8 to −1.2 < 0.001
 Boys born in 2012 396 (49) −4.2 −5.6 to −2.7 < 0.001
 Boys born in 2016 398 (51) −5.9 −8.1 to −3.6 < 0.001
Birth year (trend, showing difference per year)
 Girls 5282 (48) −0.2 −0.4 to − 0.0 0.022
 Boys 5641 (52) −0.7 −0.8 to − 0.5 < 0.001
  1. aGirls born in the corresponding year
  2. Multivariable linear regression to calculate the difference in measles vaccination coverage among children born in Norway to Somali immigrants, 2000-2016, by year of birth, gender, mothers’ time in Norway and residential area. Mothers’ time in Norway was missing for 411 children. These were excluded from the regression analysis, n=10923