Table 3.
Independent variable | 2013 | 2014 | 2015 | 2016 | 2017 |
---|---|---|---|---|---|
OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | |
Migrant status | 1.162*** (1.061-1.274) | 1.122*** (1.047-1.203) | 1.098*** (1.028-1.174) | 1.116*** (1.053-1.183) | 1.069 (0.970-1.178) |
Age | 1.001 (0.992-1.010) | 1.004 (0.995-1.013) | 0.999 (0.990-1.008) | 1.007 (0.998-1.015) | 0.985** (0.972-0.999) |
Ethnicity | 1.209 (0.846-1.729) | 0.772* (0.576-1.035) | 1.059 (0.811-1.385) | 0.812 (0.615-1.073) | 0.725 (0.466-1.127) |
Nationality | 0.977 (0.546-1.747) | 1.650* (0.923-2.950) | 2.422*** (1.345-4.363) | 1.029 (0.532-1.991) | 0.623 (0.171-2.264) |
Occupation | 0.945 (0.791-1.129) | 1.150 (0.974-1.359) | 1.201** (1.034-1.395) | 0.941 (0.856-1.035) | 0.950 (0.784-1.150) |
Gravida | 1.011 (0.969-1.055) | 1.035* (0.997-1.074) | 1.016 (0.980-1.054) | 1.027 (0.995-1.061) | 1.010 (0.957-1.067) |
Birth parity | 0.716*** (0.636-0.806) | 0.642*** (0.583-0.706) | 0.615*** (0.563-0.672) | 0.601*** (0.556-0.650) | 0.638*** (0.561-0.726) |
Gestation week | 0.768*** (0.749-0.787) | 0.687*** (0.673-0.701) | 0.684*** (0.670-0.699) | 0.692*** (0.679-0.705) | 0.719*** (0.697-0.742) |
High-risk pregnancy | 1.634*** (1.503-1.776) | 1.298*** (1.217-1.385) | 1.601*** (1.495-1.714) | 1.611*** (1.516-1.712) | 1.945*** (1.760-2.149) |
Rescue times | 0.900 (0.177-4.561) | 1.522 (0.522-4.438) | 0.865 (0.500-1.497) | 1.508* (0.998-2.280) | 1.295 (0.782-2.146) |
Maternal near-miss | 1.037 (0.212-5.085) | 1.402 (0.482-4.076) | 3.430*** (1.472-7.991) | 1.264 (0.564-2.835) | 4.506* (0.954-21.272) |
Cesarean delivery | 0.847*** (0.780-0.921) | 0.995 (0.931-1.062) | 0.912*** (0.851-0.977) | 0.905*** (0.850-0.964) | 0.784*** (0.707-0.869) |
_cons | 0.000*** (0.000-0.000) | 0.000*** (0.000-0.000) | 0.000*** (0.000-0.000) | 0.000*** (0.000-0.000) | 0.000*** (0.000-0.000) |
n | 13 690 | 24 314 | 22 669 | 32 910 | 11 098 |
Note. 95% CI in parentheses. OR = odds ratio; CI = confidence interval.
P < .05. **P < .01. ***P < .001.