Table 2.
Qualitative variables (gender, smoking, education, job and SES) of participants in two groups
| Qualitative variables | Patients | Healthy subjects | *P |
|---|---|---|---|
| Gender | |||
| Men | 71 (58.7%) | 69 (58%) | 0.91 |
| Women | 50 (41.3%) | 50 (42%) | |
| Smoking | 0.15 | ||
| No | 109 (90.1%) | 113 (95%) | |
| Yes | 11 (9.9%) | 6 (5%) | |
| Education | 0.002 | ||
| School education | 20 (16.5%) | 15 (12.6%) | |
| diploma | 43 (35.5%) | 27 (22.7%) | |
| Bachelor | 39 (32.2%) | 41 (34.5%) | |
| Master and phd | 19 (15.7) | 36 (30.3%) | |
| Job | 0.001 | ||
| Employ | 36 (29.7%) | 17 (14.3%) | |
| Private | 6 (5%) | 10 (8.4%) | |
| Student | 2 (1.7%) | 35 (29.4%) | |
| Housewife | 36 (29.85) | 21 (17.6%) | |
| Self-employ | 32 (26.4%) | 22 (18.5%) | |
| Unemployed | 9 (7.4%) | 14 (11.8%) | |
| SES | |||
| Poor | 10 (8.3) | 10 (8.4) | 0.114 |
| Middle | 78 (64.5) | 90 (75.6) | |
| Excellent | 33 (27.3) | 19 (16.0) | |
| Drug | 0.001 | ||
| No | 112 (94.1%) | 87 (71.9%) | |
| Yes | 7 (5.9%) | 34 (28.1%) | |
| Supplement | |||
| NO | 97 (81.5%) | 95 (78.5%) | 0.561 |
| Yes | 22 (18.5%) | 26 (21.5%) |
Values are number (percent); *P based on Chi-square test