Table 3 Comparison between cases of retinal detachment and controls regarding heavy lifting and history of head trauma, Ain Shams Outpatient Ophthalmology clinic, Cairo, Egypt, 2018
Variable | Control n (%) | Case n (%) | Chi-square | p value |
|---|---|---|---|---|
Occupational categories | ||||
Associated with heavy lifting | 31(32.6) | 64(67.4) | 6.27 | 0.012* |
Unlikely associated with heavy lifting | 82(48.5) | 87(51.5) | ||
Frequency of occupational heavy lifting# | ||||
Half or more of working time | 38(40.4) | 56(59.6) | 5.98 | 0.014* |
Less than half of working time | 32(61.5) | 20(38.5) | ||
Lifting heavy objects other than work | ||||
No | 79(49.7) | 80(50.3) | 7.73 | 0.005* |
Yes | 34(32.4) | 71(67.6) | ||