Table 1.
Demographic variables in the case and control groups
| Variable | Lung Cancers | Matched Controls | P-value* |
|---|---|---|---|
| N | 140 | 280 | |
| Gender | |||
| Male | 96 (68.57) | 192 (68.57) | 1.0 |
| Female | 44 (31.43) | 88 (31.43) | |
| Marital status | |||
| Married | 135 (96.43) | 273 (97.50) | 0.53 |
| Single | 5 (3.57) | 7 (2.50) | |
| Age | |||
| ≤ 50 | 35 (25.0) | 78 (27.86) | 0. 63 |
| 51–70 | 85 (60.71) | 170 (60.71) | |
| > 70 | 20 (14.29) | 32(11.43) | |
| Education | |||
| Illiterate or Elementary Education | 87 (62.14) | 68 (24.29) | 0.001 |
| Middle or High school | 42 (30.0) | 138 (49.22) | |
| High School Diploma or above | 11 (7.86) | 74 (26.43) | |
*P-values calculated according to McNemar’s test