Table 1– Distribution of Health Effects of Arsenic Longitudinal Study (HEALS) participants
TotalFemalesMales
Subjects1174667045042
BMI** kg·m−2
 <18.504555 (38.8)2333 (34.8)2222 (44.1)
 18.50–24.996108 (52.0)3696 (55.1)2412 (47.8)
 >25.00804 (6.8)515 (7.7)289 (5.7)
 Missing279 (2.4)160 (2.4)119 (2.4)
Smoking**
 Nonsmoker7568 (64.4)6282 (93.7)1286 (25.5)
 Ex-smoker777 (6.6)168 (2.5)609 (12.1)
 Smoker3390 (28.9)247 (3.7)3143 (62.3)
 Missing11 (0.1)74
Baseline well arsenic μg·L−1
 Quintile 1: <72325 (19.8)1318 (19.7)1007 (20.0)
 Quintile 2: 7– <392354 (20.0)1350 (20.1)1004 (19.9)
 Quintile 3: 39– <912333 (19.9)1347 (20.1)986 (19.6)
 Quintile 4: 91– <1792382 (20.3)1364 (20.3)1018 (20.2)
 Quintile 5: ≥1792352 (20.0)1325 (19.7)1027 (20.4)
  • Data are presented as n or n (%). BMI: body mass index. **: p<0.01 by Chi-squared test for the sex distributions of BMI and smoking.