Table 2. Association between the sociodemographic variables and the degree of hearing loss among the construction site workers.
A p-value less than 0.05 is taken as significant (p < 0.05*, p < 0.001**).
| Variable | Normal N (%) | Mild N (%) | Moderate N (%) | Moderately severe N (%) | Total N (%) | Chi-square value | p-value |
| Age (in years) | |||||||
| 18-30 | 334 (88.8) | 24 (6.4) | 10 (2.6) | 8 (2.2) | 376 (100) | 25.32 | 0.002* |
| 31-40 | 75(83.3) | 4 (4.4) | 7 (7.8) | 4 (4.4) | 90 (100) | ||
| 41-50 | 24 (80) | 4 (13.3) | 1 (3.3) | 1 (3.3) | 30 (100) | ||
| 51-60 | 1 (25) | 1 (25) | 1 (25) | 1 (25) | 4 (100) | ||
| Gender | |||||||
| Male | 283 (88.4) | 10 (3.1) | 14 (4.4) | 13 (4.1) | 320 (100) | 22.37 | 0.001* |
| Female | 151 (83.9) | 23 (12.8) | 5 (2.8) | 1 (0.5) | 180 (100) | ||
| Work experience (in years) | |||||||
| 1-5 | 269 (90.3) | 19 (6.4) | 8(2.7) | 2 (0.7) | 298 (100) | 64.71 | <0.001** |
| 6-10 | 142 (88.8) | 5 (3.1) | 5 (3.1) | 8(5) | 160(100) | ||
| 11-15 | 13 (56.5) | 6 (26.1) | 3 (13.1) | 1 (0.2) | 23(100) | ||
| 16-20 | 3 (0.6) | 1 (0.2) | 2 (0.4) | 2 (4.3) | 8(100) | ||
| 21-30 | 7 (63.6) | 2 (18.2) | 1 (9.1) | 1 (9.1) | 11(100) | ||
| No. of hours of work per day (in hours) | |||||||
| 1-5 | 6 (60) | 2 (20) | 1 (10) | 1 (10) | 10(100) | 65.83 | <0.001** |
| 5-8 | 47 (94) | 1 (2) | 1 (2) | 1 (2) | 50 (100) | ||
| 8-10 | 270 (93.1) | 5 (1.7) | 14 (4.8) | 1 (0.3) | 290 (100) | ||
| >10 | 111 (74) | 25 (16.7) | 3 (2) | 11 (7.3) | 150 (100) | ||