From: Smoking during pregnancy and risk of abnormal glucose tolerance: a prospective cohort study
 | Age-adjusted | Age- and weight-gain adjusted | Multivariatea | ||||||
---|---|---|---|---|---|---|---|---|---|
 | Beta | SE | p-valueb | Beta | SE | p-valueb | Beta | SE | p-valueb |
Pre-pregnancy | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Non-smoker | referent |  |  |  |  |  | referent |  |  |
   Smoker | -1.37 | 2.17 | 0.53 | -2.86 | -2.31 | 0.21 | -2.00 | 2.19 | 0.36 |
> 0-9 cigarettes/day | 0.51 | 2.58 | 0.84 | -2.37 | 2.77 | 0.39 | -0.72 | 2.62 | 0.78 |
10+ cigarettes/day | -2.28 | 2.62 | 0.38 | -3.35 | 2.78 | 0.23 | -3.31 | 2.62 | 0.21 |
Early Pregnancy | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Non-smoker1 | referent |  |  |  |  |  | referent |  |  |
   Former smoker2 | -1.00 | 2.13 | 0.64 | -2.73 | 2.28 | 0.23 | -2.46 | 2.22 | 0.27 |
   Smoker | -5.47 | 1.99 | < 0.01 | -4.81 | 2.24 | 0.03 | -4.60 | 2.08 | 0.03 |
> 0-9 cigarettes/day | -5.61 | 2.27 | 0.01 | -5.54 | 2.55 | 0.03 | -5.16 | 2.31 | 0.03 |
10+ cigarettes/day | -6.00 | 3.92 | 0.13 | -5.25 | 4.35 | 0.23 | -5.23 | 4.19 | 0.21 |
Mid Pregnancy | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Non-smoker1 | referent |  |  |  |  |  | referent |  |  |
   Former smoker3 | -1.21 | 2.06 | 0.55 | -2.86 | 2.23 | 0.20 | -2.04 | 2.06 | 0.32 |
   Smoker | -6.42 | 2.39 | < 0.01 | -5.99 | 2.66 | 0.02 | -6.08 | 2.42 | 0.01 |
> 0-9 cigarettes/day | -6.62 | 2.73 | 0.01 | -7.13 | 2.96 | 0.02 | -6.93 | 2.73 | 0.01 |
10+ cigarettes/day | -7.55 | 4.91 | 0.12 | -6.09 | 6.37 | 0.34 | -6.00 | 5.05 | 0.23 |