Table 3 Anthropometric, reproductive, and lifestyle characteristics of women across Total Smoke Exposure groups
From: Joint effect of particulate matter and cigarette smoke on women’s sex hormones
Characteristics | Level | Statistics | Total Smoke Exposure | Test | |
|---|---|---|---|---|---|
nSM | SM | ||||
Age [years] | N | 84 | 44 | t test; df = 126; p = 0.218 | |
Mean | 29.8 | 29.0 | |||
SD | 3.2 | 2.9 | |||
Age at first child [years] | N | 31 | 17 | t test; df = 46; p = 0.055 | |
Mean | 24.7 | 22.9 | |||
SD | 3.3 | 2.5 | |||
Parity status | No | N | 52 | 28 | Pearson Chi-square: 0.04, df = 1, p = 0.849 |
% | 61.9 | 63.6 | |||
Yes | N | 32 | 16 | ||
% | 38.1 | 36.4 | |||
Menarcheal age [years] | N | 82 | 43 | t test; df = 123; p = 0.876 | |
Mean | 13.3 | 13.3 | |||
SD | 1.3 | 1.6 | |||
Cycle length [days] | N | 84 | 44 | Mann–Whitney U test, p = 0.625 | |
Median | 28.0 | 29.0 | |||
IQR | 26.0–31.5 | 26.0–30.0 | |||
Height [cm] | N | 84 | 44 | t test; df = 126; p = 0.748 | |
Mean | 164.6 | 164.2 | |||
SD | 6.0 | 6.2 | |||
Body fat [%] | N | 83 | 44 | t test; df = 125; p = 0.944 | |
Mean | 25.2 | 25.1 | |||
SD | 6.4 | 5.4 | |||
Body mass index* [kg/m2] | N | 88 | 44 | Mann–Whitney U test, p = 0.475 | |
Median | 21.1 | 22.1 | |||
IQR | 20.0–23.8 | 20.0–24.0 | |||
Body weight [kg] | N | 84 | 44 | t test; df = 126; p = 0.819 | |
Mean | 59.7 | 60.0 | |||
SD | 8.5 | 8.7 | |||
Marital status | Single | N | 34 | 15 | Pearson Chi-square = 0.38, df = 1, p = 0.541 |
% | 40.5 | 34.9 | |||
Ever married | N | 50 | 28 | ||
% | 59.5 | 65.1 | |||