Group-specific Differences in Blood Lead Levels among Occupationally Exposed Workers in Greater Banjul Area, The Gambia

Table 4b.

Multinomial Logistic Regression Model of Blood Pb Levels among OccupationalGroups


Variable	Blood Pb Level (μg/dL) RRR (95% CI)

	5-9μg/dL	>10μg/dL

Age
≤20	Reference	Reference
21-30	1.32 (0.38, 4.60)	0.51 (0.12, 2.13)
31-40	0.98 (0.16, 6.15)	1.25 (0.17, 9.33)
41-50	1.06 (0.07, 15.10)	1.79 (0.11, 29.40)
>50	1.51 (0.11, 20.57)	1.29 (0.07, 23.88)
Read and write
Yes	Reference	Reference
No	1.15 (0.35, 3.84)	1.83 (0.49, 6.87)
Years of work
1-3	Reference	Reference
4-9	1.65 (0.36, 7.43)	0.70 (0.14, 3.52)
≥10	3.58 (0.67, 19.10)	1.82 (0.28, 11.65)
Smoker/ex-smoker
Yes	0.73 (0.27, 1.96)	1.08 (0.36, 3.26)
No	Reference	Reference
Repair radiators
Yes	0.72 (0.24, 1.96)	0.36 (0.11, 1.21)
No	Reference	Reference
Repair batteries
Yes	0.60 (0.18, 2.00)	1.51 (0.42, 5.44)
No	Reference	Reference
Panel beat/weld
Yes	1.13 (0.34, 3.78)	1.25 (0.34, 4.64)
No	Reference	Reference
Paint/spray cars
Yes	0.55 (0.12, 2.60)	0.06 (0.01, 0.66)
No	Reference	Reference
Used PPE when wielding vehicle parts
Yes	Reference	Reference
No	0.62 (0.07, 5.40)	0.32 (0.03, 3.47)
Used PPE when painting cars
Yes	Reference	Reference
No	1.18 (0.15, 9.40)	0.60 (0.03, 13.77)

RRR: Relative Risk Ratio, CI: Confidence Interval