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

Table 3.

Blood Pb Level (μg/dL) of Participants according to Work-related ExposureVariables

Variable Blood Pb Level (μg/dL) N (%) P-value Blood Pb Level (μg/dL) N (%) P-value


EXPOSEDUNEXPOSED


<5μg/dL 5-9μg/dL >10 μg/dL <5μg/dL 5-9μg/dL >10μg/dL

Years of work       0.209       0.313
   <1 1 (20.0) 3 (60.0) 1 (20.0) 1 (33.3) 2 (66.7) 0 (0.0)
   1-3 5 (26.3) 5 (26.3) 9 (47.4) 5 (38.4) 4 (30.8) 4 (30.8)
   4-6 8 (25.8) 14 (45.2) 9 (29.0) 6 (54.6) 3 (27.3) 2 (18.1)
   7-9 2 (16.7) 9 (75.0) 1 (8.3) 13 (59.1) 7 (31.8) 2 (9.1)
   ≥10 10 (13.0) 42 (54.6) 25 (32.4) 1 (33.3) 4 (21.1) 8 (42.1)
Hours of work per day       0.741       0.685
   4-5 - - - 1 (100.0) 0 (0.0) 0 (0.0)
   6-8 0 (0.0) 1 (50.0) 1 (50.0) 27 (49.1) 16 (29.1) 12 (21.8)
   >8 26 (18.2) 73 (51.1) 44 30.7) 4 (33.4) 4 (33.3) 4 (33.3)
Days of work per week       0.07       0.405
   1-6 10 (12.4) 41 (50.6) 30 (37.0) 30 (49.2) 18 (29.5) 13 (21.3)
7 16 (25.0) 33 (51.6) 15 (23.4) 2 (28.6) 2 (28.6) 3 (42.8)
Smoker or ex-smoker       0.77       0.068
   Yes 12 (19.1) 30 (47.6) 21 (33.3) 5 (26.3) 9 (47.4) 5 (26.3)
   No 14 (17.1) 44 (53.7) 24 (29.2) 27 (55.0) 11 (22.5) 11 (22.5)
Eat lunch/food at work       0.327       0.301
   Yes 26 (18.1) 74 (51.4) 44 (30.5) 29 (46.0) 20 (31.8) 14 (22.2)
   No 0 (0.0) 0 (0.0) 1 (100.0) 3 (60.0) 0 (0.0) 2 (40.0)
Repair radiators       0.385        
   Yes 14 (21.2) 35 (53.0) 17 (25.8)        
   No 12 (15.2) 39 (49.4) 28 (35.4)        
Repair batteries       0.32        
   Yes 8 (19.5) 17 (41.5) 16 (39.0)        
   No 18 (17.3) 57 (54.8) 29 (27.9)        
Panel beat/weld vehicle parts       0.741        
   Yes 10 (16.4) 30 (49.2) 21 (34.4)        
   No 16 (19.1) 44 (52.3) 24 (28.6)        
Paint/spray cars       0.021        
   Yes 8 (27.6) 18 (62.1) 3 (10.3)        
   No 18 (15.5) 56 (48.3) 42 (36.2)        
                 

N = Frequency, P-Value < 0.05 is significant