Table 1 Distribution of TTP covariates at the time of pregnancy attempt, by occupational group
From: Increased time-to-pregnancy is associated with domestic work in South Africa
Variable | Administrative workers | Domestic workers | Teachers | P-value |
|---|---|---|---|---|
N = 106 | N = 31 | n = 65 | ||
Mean age in years (sd) | 28 (4) | 28 (6) | 30 (4) | 0.1369 |
Race (%) | <0.01 | |||
Black | 20 | 74 | 9 | |
White | 61 | 0 | 86 | |
Coloured | 14 | 26 | 2 | |
Indian | 5 | 0 | 3 | |
Education (%) | < 0.01 | |||
Primary or less | 6 | 54 | 0 | |
Some secondary | 8 | 42 | 0 | |
Completed secondary | 42 | 4 | 5 | |
Tertiary | 43 | 0 | 95 | |
Monthly income in ZARa (%) | < 0.01 | |||
Less than 2500 | 10 | 97 | 3 | |
2500–4999 | 21 | 3 | 8 | |
5000–9999 | 39 | 0 | 30 | |
10000 and above | 30 | 0 | 59 | |
Smoked (%) | 15 | 26 | 5 | 0.016 |
Had a chronic disease (%) | 9 | 29 | 9 | 0.009 |
Previously used contraceptive (%) | 81 | 67 | 83 | 0.189 |
Coital frequency (%) | 0.343 | |||
Almost daily | 43 | 47 | 46 | |
Once a week | 22 | 25 | 18 | |
Less than once a week | 21 | 21 | 18 | |
Don’t know | 14 | 6 | 18 | |
Mean gravidity | 1.2 | 1.4 | 1.2 | 0.6133 |
Mean partner’s age | 31 | 30 | 32 | 0.5021 |
Partner smoked (%) | 37 | 67 | 28 | <0.01 |