Table 2. Characteristics and life style (means and SEM) of rubber tappers with and without electric light at home in Phase 1 (n = 340) and Phase 2 (n = 42).
| Variables |
Phase 1 |
Phase 2 |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Electric light |
No Electric light |
p |
Electric light |
No Electric light |
p | |||||
| χ | (SEM) | χ | (SEM) | χ | (SEM) | χ | (SEM) | |||
| Age (years) | 40.5 | (1.3) | 42.6 | (0.9) | 0.21a | 38.1 | (2.6) | 35.7 | (2.0) | 0.53b |
| BMI (kg/m2) | 24.0 | (0.4) | 23.6 | (0.2) | 0.22b | 24.1 | (0.7) | 23.1 | (0.7) | 0.09b |
| Musculoskeletal pain (score 1–9) | 3.3 | (0.3) | 3.3 | (0.2) | 0.78b | 2.8 | (0.6) | 3.6 | (0.4) | 0.27b |
| Diurnal preference (score) | 24.0 | (0.3) | 24.4 | (0.1) | 0.52b | 22.4 | (0.6) | 23.6 | (0.5) | 0.14a |
| Sun exposure – Work days (hours) | 5.2 | (0.3) | 5.4 | (0.2) | 0.31b | 4.5 | (0.5) | 5.2 | (0.5) | 0.47a |
| Chronotype – (time) | 01:00 | (1.0 h) | 00:36 | (0.9 h) | <0.01a | 01:17 | (1.0 h) | 00:54 | (1.0 h) | 0.44a |
aStudent’s t-test.
bMann-Whitney.