Table 1 Distribution of common symptoms suggestive of lead toxicity and its association between assessed blood lead levels
Symptoms | Blood lead level <10 ug/dl | Blood lead level >10 ug/dl | χ 2 | p-value | ||
|---|---|---|---|---|---|---|
Present | Absent | Present | Absent | |||
n (%) | n (%) | n (%) | n (%) | |||
Frequent headache | 31 (18.4) | 96 (58.3) | 7 (4.1) | 34 (20.2) | 0.953 | 0.329 |
Fatigue | 29 (17.2) | 98 (58.3) | 7(4.1) | 34 (20.2) | 0.611 | 0.434 |
Tremors | 11 (6.5) | 116 (69.8) | 2 (1.2) | 39 (23.2) | 0.621 | 0.431 |
Irritability | 18 (10.7) | 109 (64.8) | 6 (3.5) | 35 (20.8) | 0.005 | 0.942 |
Nausea | 3 (1.7) | 124 (73.8) | 1 (0.5) | 40 (23.8) | 0.001 | 0.978 |
Constipation | 10 (5.9) | 117 (69.6) | 2 (1.2) | 39 (24.2) | 0.419 | 0.517 |
Insomnia | 7 (4.1) | 120 (71.4) | 3 (1.7) | 38 (22.6) | 0.180 | 0.671 |