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Table 1 Characteristics of participants overall (n = 323) and by toenail arsenic concentration (μg/g) (n = 322)

From: Arsenic exposure during pregnancy and postpartum maternal glucose tolerance: evidence from Bangladesh

   --------------Quartiles of Toenail Arsenica---------------
Overall (n = 323) Q1 (n = 82) Q2 (n = 79) Q3 (n = 80) Q4 (n = 81)
Median (IQR) or % Median (IQR) or %
Characteristics
Child with neural tube defect (%) 51 52 54 44 52
Age (years) 24.0 (7.0) 25.0 (8.0) 23.0 (7.0) 23.0 (6.2) 24.0 (8.0)
Prenatal betel nut use (%) 44 40 41 42 52
Education
 No formal schooling (%) 20 16 18 28 19
 High school or less (%) 54 55 53 51 56
 College/University (%) 26 29 29 21 26
Unemployed (%) 96 90 97 99 96
Spouse occupation
 Unemployed (%) 1 1 1 1 0
 Office worker (%) 43 37 46 42 49
 Agricultural laborer or carpenter (%) 43 49 51 38 35
 Unknown (%) 13 13 3 19 16
Rice Intake (cups/day) 6.0 (3.0) 6.0 (5.0) 6.6 (3.0) 6.0 (3.0) 8.0 (5.6)
Fish Intake (cups/day) 0.4 (0.3) 0.5 (0.3) 0.4 (0.3) 0.4 (0.3) 0.4 (0.3)
HOMA measurement
HOMA-IR 1.2 (1.1) 1.2 (1.0) 1.2 (0.9) 1.1 (1.4) 1.1 (1.2)
HOMA-ß 84.5 (70.2) 88.9 (68.8) 81.7 (89.1) 89.7 (67.0) 84.8 (67.2)
Hours fasting 10.9 (5.7) 10.8 (5.2) 11.1 (6.3) 11.3 (4.6) 10.8 (5.8)
Months postpartum 3.1 (6.2) 2.1 (4.5) 3.0 (6.2) 4.6 (7.2) 3.7 (5.7)
  1. aQuartile ranges (μg/g): Q1: 0.091-0.278, Q2: 0.279-0.452, Q3: 0.453-0.951, Q4: 0.952-12.299