Table 1.
Respondents’ characteristics on the exposed (N = 30) and the control group (N = 22).
| Variable (n) | Exposed group n (%) | Control group n (%) |
|---|---|---|
| Gender | ||
| Male | 17 (56.67) | 9 (40.91) |
| Female |
13 (43.44) |
13 (59.09) |
| Age (years)∗ | ||
| 18–39 | 15 (50,00) | 7 (26,92) |
| 40–60 | 11 (36,67) | 14 (53,85) |
| >60 |
4 (13,33) |
5 (19,23) |
| Smoking habit | ||
| Non-smoker | 22 (73.33) | 17 (77.27) |
| Smoker |
8 (26.67) |
5 (22.73) |
| Caffeine consumptiona | ||
| <3 glass | 24 (80.00) | 19 (86.36) |
| ≥3 glasses |
6 (20.00) |
3 (13.64) |
| Education level | ||
| Did not attend school | 1 (3.33) | 0 (0) |
| Elementary | 6 (20.00) | 11 (50.00) |
| Middle | 6 (20.00) | 4 (18.18) |
| High | 16 (53.33) | 5 (22.73) |
| University | 1 (3.33) | 2 (9.09) |
∗statistically significant (p < 0,05).
a
Caffeine in tea and coffee.
Source: Analysis result