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Lung function status of the traffic policeman.
| Variables | Status | Study Locations Frequencies (%) | Total N = 134 Frequencies (%) | χ2 value | p-value | |
|---|---|---|---|---|---|---|
| KL n = 70 | JB n = 64 | |||||
| FVC% predicted | Abnormal | 61(87.1) | 61(95.3) | 122(91.0) | 2.74 | 0.10 |
| Normal | 9(12.9) | 3(4.7) | 12(9.0) | |||
| FEV1% predicted | Abnormal | 65(92.9) | 61(95.3) | 126(94.0) | 0.36 | 0.55 |
| Normal | 5(7.1) | 3(4.7) | 8(6.0) | |||
*chi-square test.
