Table 5

Logistic regression analysis of independent risk factors for musculoskeletal symptoms among MSW collectors

	β	p Value	OR (95% CI)
Duration of employment (years)
<15	−1.01	p≤0.05	0.4 (0.1 to 0.9)
≥15 (r)	−1.01	p≤0.05	0.4 (0.1 to 0.9)
Decision latitude
High	1.3	p≤0.01	0.3 (0.1 to 0.7)
Low (r)	1.3	p≤0.01	0.3 (0.1 to 0.7)
Lift, pull, push or carry loads >20 kg
Yes	1.7	p≤0.01	5.5 (1.8 to 17.0)
No (r)	1.7	p≤0.01	5.5 (1.8 to 17.0)
Walk for long periods of time
Yes	0.97	p≤0.05	2.6 (1.1 to 6.6)
No (r)	0.97	p≤0.05	2.6 (1.1 to 6.6)
Constant	−0.3
Model χ²	32.0, p≤0.001
Percentage correctly predicted	70