Table 2.
Lifestyle habits of MGD patients and normal controls.
| Parameters | Normal controls (n = 114) | MGD group (n = 830) | P-value |
|---|---|---|---|
| Smoking | |||
| Number of smokers [n (%)] | 6 (5.3%) | 86 (10.4%) | 0.041* |
| Number of non-smokers [n (%)] | 108 (94.7%) | 744 (89.6%) | |
| Smoking index of smokersa | 73.2 ± 12.1 | 159.3 ± 26.8 | 0.032* |
| Drinking | 0.745 | ||
| Number of Drinkers | 9 (7.9%) | 172 (20.8%) | 0.001* |
| Number of Non-Drinkers | 105 (92.1%) | 658 (79.2%) | |
| Alcohol drinking index of drinkersa | 283.5 ± 22.3 | 325.2 ± 45.3 | 0.496 |
| Reading [n (%)] | |||
| 0 (never) | 0 (0.0%) | 32 (3.9%) | 0.029 |
| 1 (almost never) | 22 (19.3%) | 100 (12.1%) | |
| 2 (1-2 day/week) | 14 (12.3%) | 87 (10.5%) | |
| 3 (3-5 day/week) | 23 (20.2%) | 113 (13.6%) | |
| 4 (almost every day) | 55 (48.2%) | 498 (60.0%) | |
| Sports (h/week) | |||
| Low intensity | 3.6 ± 2.2 | 2.6 ± 1.4 | 0.092 |
| Medium intensity | 2.0 ± 1.2 | 2.3 ± 2.0 | 0.404 |
| High intensity | 1.3 ± 1.1 | 1.0 ± 1.2 | 0.903 |
| Walks (> 30 min) [n (%)] | |||
| 0 (never) | 74 (65.0%) | 521 (62.7%) | 0.280 |
| 1 (2-3 days/week) | 11 (9.6%) | 125 (15.6%) | |
| 2 (4-5 days/week) | 26 (22.8%) | 144 (17.3%) | |
| 3 (6-7 days/week) | 3 (2.6%) | 40 (4.8%) | |
| Inactive time (h/day) | 5.6 (3.0–7.5) | 4.7 (3.6–6.2) | 0.442 |
*P < 0.05 was considered statistically significant.
aSmoking and drinking index were calculated as follows: Smoking index = (number of cigarettes consumed per day) × (years of smoking); Alcohol drinking index = (Gram of Liquor consumed per day) × (years of drinking).