Table 4.
Linear regression models: Results for the association of 1-min and 5-min Apgar scores and the exposure variables
| Characteristic | Model 1: 1- minute Apgar score | Model 2: 5- minute Apgar score | ||||
|---|---|---|---|---|---|---|
| β coefficient | 95% CI | β coefficient | 95% CI | |||
| Mother´s origin | ||||||
| Colombian | 1.00 | 1.00 | ||||
| Venezuelan | − 0.085 | − 0.146 | − 0.025 | − 0.127 | − 0.174 | − 0.080 |
| Maternal age groups (years) | ||||||
| 20–34 | 1.00 | 1.00 | ||||
| 10–19 | − 0.020 | − 0.026 | − 0.013 | − 0.006 | − 0.011 | − 0.0006 |
| ≥ 35 | − 0.012 | − 0.020 | − 0.005 | − 0.015 | − 0.022 | − 0.009 |
| Maternal education | ||||||
| No formal education/ Primary schooling | 1.00 | 1.00 | ||||
| Secondary schooling | 0.038 | 0.031 | 0.046 | − 0.004 | − 0.010 | 0.0009 |
| Technical and technological | 0.069 | 0.060 | 0.077 | 0.016 | 0.009 | 0.023 |
| Professional level and higher | 0.147 | 0.137 | 0.156 | 0.067 | 0.060 | 0.075 |
| Marital status | ||||||
| Married or living with the partner | 1.00 | 1.00 | ||||
| Single/divorced/widow | − 0.047 | − 0.053 | − 0.040 | − 0.023 | − 0.029 | − 0.018 |
| Number of previous pregnancies | ||||||
| 2–4 | 1.00 | 1.00 | ||||
| 1 | 0.022 | 0.011 | 0.033 | 0.025 | 0.016 | 0.034 |
| > 5 | − 0.032 | − 0.043 | − 0.021 | − 0.028 | − 0.038 | − 0.019 |
| Interbirth period | ||||||
| 25–60 months | 1.00 | 1.00 | ||||
| < 24 months/2 years | − 0.013 | − 0.023 | − 0.003 | − 0.012 | − 0.020 | − 0.004 |
| > 61 months | − 0.018 | − 0.024 | − 0.011 | − 0.017 | − 0.022 | − 0.012 |
| No previous birth | − 0.079 | − 0.091 | − 0.067 | − 0.066 | − 0.076 | − 0.056 |
| Birth region | ||||||
| Bogotá and Cundinamarca | 1.00 | 1.00 | ||||
| Central | 0.078 | 0.071 | 0.084 | 0.327 | 0.321 | 0.332 |
| Caribbean and Islands | 0.153 | 0.146 | 0.159 | 0.221 | 0.216 | 0.227 |
| Oriental | 0.095 | 0.088 | 0.102 | 0.302 | 0.296 | 0.308 |
| Pacific | 0.428 | 0.421 | 0.435 | 0.403 | 0.397 | 0.409 |
| Amazonian and Orinoquía | 0.024 | 0.002 | 0.046 | 0.192 | 0.174 | 0.210 |
| Multiple birth | ||||||
| No | 1.00 | 1.00 | ||||
| Yes | − 0.341 | − 0.369 | − 0.313 | − 0.325 | − 0.350 | − 0.300 |
| Newborn´s sex | ||||||
| Female infant | 1.00 | 1.00 | ||||
| Male infant | 0.036 | 0.032 | 0.041 | 0.020 | 0.017 | 0.024 |
| Mode of birth | ||||||
| Vaginal birth | 1.00 | 1.00 | ||||
| Cesarean section | − 0.061 | − 0.066 | − 0.056 | − 0.093 | − 0.097 | − 0.089 |
Models adjusted for: maternal age, education level, marital status, number of previous pregnancies, interbirth period, birth region, multiple birth, mode of birth and newborn´s sex
ß coefficient and 95% Confidence Interval (95% CI)