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Table 1 Demographic characteristics of sample population

From: Chronic kidney disease of unknown aetiology in Sri Lanka: is cadmium a likely cause?

Variable Females (n = 425) Males (n = 461) p-value
Mean (SD) age (years) 30.53 (20.60) 33.63 (17.4) 0.016
Mean (SD) height (cm) 62.68 (75.15) 81.90 (81.23) < 0.001
Mean (SD) weight (kg) 25.68 (24.87) 37.09 (24.81) < 0.001
Number (%) by occupation    
Agriculture based 302 (71.1) 393 (85.2) 0.001
Other 123 (28.9) 68 (14.8) < 0.001
Number (%) involved in pesticide spraying 45 (14.8) 321 (81.7) < 0.001
Number (%) by source of drinking water at home    
Well 388 (93.9) 425 (93.0) 0.572
Stream 9 (2.2) 19 (4.2) 0.099
Pipe 24 (5.8) 19 (4.2) 0.261
Tube well 17 (4.1) 22 (4.8) 0.619
Other 0 (0.0) 1 (0.2) 0.525
Number (%) by source of drinking water in the field    
From home 252 (79.7) 286 (69.9) 0.003
Well in the field 105 (33.2) 187 (45.7) 0.001
Other 19 (6.0) 36 (8.8) 0.160