Resistance (R), Compliance (C) and Inertance (I) by gender and maternal smoking
| | Male (n=104) | Female (n=94) | P |
| R (hPa.s.L-1) mean ± SD | 55.7 ± 19.6 | 48.3 ± 15.6 | 0.004 |
| C (mL.hPa-1) mean ± SD | 0.77 ± 0.35 | 0.91 ± 0.46 | 0.02 |
| I (hPa.s2.L-1) mean ± SD | 0.72 ± 0.05 | 0.70 ± 0.03 | 0.83 |
| | Maternal smoker (n=83) | Maternal non-smoker (n=114) | |
| R (hPa.s.L-1) mean ± SD | 51.8 ± 20.7 | 52.5 ± 16.2 | 0.8 |
| C (mL.hPa-1) mean ± SD | 0.76 ± 0.29 | 0.89 ± 0.48 | 0.03 |
| I (hPa.s2.L-1) mean ± SD | 0.067 ± 0.05 | 0.074 ± 0.03 | 0.3 |