From: Adverse effects of parental smoking during pregnancy in urban and rural areas
Variables | Parameter estimates | Analysis of deviance | ||
---|---|---|---|---|
Estimate | Standard error | Chi-square | p | |
Birthweight | Â | Â | Â | Â |
   Paternal smoking amount | −2.097 | 0.900 | 30.09 | <0.001 |
   Maternal smoking amount | −16.454 | 3.732 | 6.14 | 0.105 |
   Smoking amount in both parents | −2.890 | 0.890 | 27.67 | <0.001 |
Gestational age | Â | Â | Â | Â |
   Paternal smoking amount | −0.010 | 0.004 | 22.67 | <0.001 |
   Maternal smoking amount | −0.062 | 0.014 | 11.14 | 0.011 |
   Smoking amount in both parents | −0.013 | 0.004 | 16.87 | 0.001 |
Low birthweight | Â | Â | Â | Â |
   Paternal smoking amount | 0.017 | 0.006 | 17.75 | <0.001 |
   Maternal smoking amount | 0.070 | 0.019 | 1.18 | 0.554 |
   Smoking amount in both parents | 0.022 | 0.006 | 12.23 | 0.002 |
Preterm birth | Â | Â | Â | Â |
   Paternal smoking amount | 0.021 | 0.007 | 16.07 | <0.001 |
   Maternal smoking amount | 0.088 | 0.019 | 6.55 | 0.038 |
   Smoking amount in both parents | 0.028 | 0.007 | 10.45 | 0.005 |