Table 1 Frequency distribution of demographic variables in the case and control groups
Variable | Categories | Case group | Control group | P value | ||
|---|---|---|---|---|---|---|
Number | Percentage | Number | Percentage | |||
Educational level | Primary school | 8 | 13.6 | 2 | 2 | 0.02 |
Secondary school | 9 | 15.3 | 16 | 16.3 | ||
High school | 23 | 39 | 34 | 34.7 | ||
Bachelor’s degree and higher | 19 | 32.2 | 46 | 46.9 | ||
Number of children | 0 | 9 | 14.8 | 0 | 0 | < 0.001 |
1 | 29 | 47.5 | 15 | 15.2 | ||
2 | 15 | 24.6 | 77 | 77.8 | ||
3 | 8 | 13.1 | 7 | 7.1 | ||
Occupation | Housekeeper | 42 | 70 | 83 | 83.8 | 0.039 |
Employee | 18 | 30 | 16 | 16.2 | ||