Table 1 Comparison of socio-demographic characteristics between SWSD, No SWSD and non-shift group
| Variables | Shift group | Non-shift group | p1 | p2 | p3 | |
|---|---|---|---|---|---|---|
|
SWSD n = 19 |
No SWSD n = 25 | n = 44 | ||||
| Age (yrs) (Mean ± SD) | 34.7 ± 4.1 | 35.7 ± 5.1 | 36.7 ± 4.8 | 0.980 | 0.425 | 0.399 |
| Age group (yrs) n (%) | ||||||
| 26–30 | 3 (15.8) | 4 (16.0) | 3 (6.8) | 0.797 | 0.417 | 0.682 |
| 31–35 | 6 (31.6) | 11 (44.0) | 22 (50.0) | |||
| 36–40 | 6 (31.6) | 5 (20.0) | 9 (20.5) | |||
| 41–45 | 4 (21.1) | 5 (20.0) | 10 (2.7) | |||
| Gender n (%) | ||||||
| Male | 6 (31.6) | 6 (24.0) | 17 (38.6) | 0.576 | 0.593 | 0.215 |
| Female | 13 (68.4) | 19 (76.0) | 27 (61.4) | |||
| Ethnicity n (%) | ||||||
| Yoruba | 17 (89.4) | 23 (8.0) | 41 (93.2) | 0.405 | 0.815 | 0.638 |
| Igbo | 1 (5.3) | 2 (8.0) | 2 (4.5) | |||
| Hausa | 1 (5.3) | 0 (0.0) | 1 (2.3) | |||
| Others | ||||||
| Smoking n (%) | 1 (5.3) | 0 (0.0) | 0 (0.0) | 0.432 | 0.302 | Constant |
| Alcohol n (%) | 3 (15.8) | 0 (0.0) | 1 (2.3) | 0.073 | 0.078 | 1.000 |
| Coffee n (%) | 3 (15.8) | 0 (0.0) | 1 (15.8) | 0.073 | 0.145 | 1.000 |
| Kola nut n (%) | 2 (10.5) | 0 (0.0) | 1 (2.3) | 0.181 | 0.443 | 1.000 |