Table 2 The effects of predictors on pregnancy spacing
predictors | Coef (β) | HR | Se(β) | 95% CI for HR | p-value |
|---|---|---|---|---|---|
Mother predictors | |||||
Contraception use | 0.849 | 2.337 | 0.136 | 1.23–2.76 | < 0.001 |
age of mother at marriage | −0.659 | 1.931 | 0.003 | 1.63–2.02 | < 0.001 |
Breast feeding duration of previous child | 0.587 | 1.798 | 0.147 | 1.35–2.02 | < 0.001 |
BMI of mother | 0.523 | 1.687 | 0.447 | 1.51–2.86 | 0.012 |
First menstrual age | − 0.001 | 0.995 | 0.013 | 0.31–1.24 | 0.710 |
Mother having job | 0.023 | 1.023 | 0.064 | 0.23–1.74 | 0.713 |
Mother drug use | −0.012 | 1.012 | 0.108 | 0.26–1.94 | 0.895 |
Mother underlying diseases (BP, Diabetes, kidney disease) | −0.013 | 1.013 | 0.107 | 0.98–1.78 | 0.891 |
Education | |||||
Primary and Middle school | −0.011 | 1.011 | 0.107 | 0.21–1.72 | 0.891 |
High school | −0.063 | 1.065 | 0.097 | 0.37–1.54 | 0.359 |
University education | −0.074 | 1.076 | 0.094 | 0.31–1.61 | 0.281 |
night job of mother | 0.066 | 1.068 | 0.096 | 0.28–1.74 | 0.469 |
Mode of delivery (vaginal, C-section) | 0.038 | 1.038 | 0.074 | 0.41–1.72 | 0.621 |
Husband predictors | |||||
Education | |||||
Primary and Middle school | −0.018 | 1.018 | 0.074 | 0.38–1.61 | 0.511 |
High school | −0.036 | 1.036 | 0.074 | 0.32–1.97 | 0.632 |
University education | 0.421 | 1.523 | 0.357 | 1.33–2.48 | 0.035 |
Husband drug use | 0.038 | 1.038 | 0.056 | 0.29–1.92 | 0.499 |
Night job of husband | 0.012 | 1.012 | 0.107 | 0.24–1.89 | 0.751 |
Family and Child predictors | |||||
Income sufficiency | 0.716 | 2.046 | 0.039 | 1.61–3.02 | 0.018 |
Mother’s awareness of optimum pregnancy spacing | 0.447 | 1.564 | 0.227 | 1.33–2.48 | 0.021 |
Sex preference of mother (boy prefer) | −0.802 | 2.231 | 0.432 | 1.24–2.81 | 0.023 |
Presence of abortion or still birth in preceding pregnancy | −0.604 | 1.831 | 0.448 | 1.27–2.93 | 0.033 |
Sex preference of husband (boy prefer) | −0.045 | 1.046 | 0.056 | 0.61–1.84 | 0.478 |