Table 3.
Multiple linear regression models showing the associations of sociodemographic and other maternal variables with maternal organochlorine (OC) levels.
| PCB 99 a |
PCB 101 a |
PCB 118 a |
PCB 138 a |
PCB 153 a |
PCB 180 a |
HCB a | Heptachlor a | o,p-DDE a | p,p’-DDE a | o,p-DDD a | p,p’-DDD a | p,p’-DDT a | Mirex a | Aldrin a | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age | 0.10 | −0.01 | −0.07 | 0.17 | 0.26 * | 0.19 | 0.15 | 0.01 | 0.06 | 0.39 ** | 0.18 | 0.22 | 0.22 | −0.22 | −0.22 |
| BMI | −0.06 | −0.01 | 0.04 | −0.03 | −0.06 | −0.08 | 0.14 | −0.07 | −0.17 | 0.07 | −0.05 | −0.22 | −0.11 | 0.07 | 0.22 |
| Parity b | |||||||||||||||
| Para (1−3) | −0.13 | 0.08 | −0.07 | −0.24 * | −0.33 * | −0.17 | −0.29 * | −0.08 | 0.17 | −0.45 ** | −0.05 | 0.05 | 0.002 | 0.10 | −0.05 |
| Para (≥4) | −0.08 | −0.02 | −0.02 | −0.20 | −0.31 * | −0.12 | −0.25 * | −0.02 | 0.03 | −0.45 ** | −0.08 | −0.04 | −0.11 | 0.42 ** | 0.04 |
| Education | 0.12 | −0.16 | −0.04 | 0.07 | 0.07 | 0.10 | 0.07 | 0.08 | −0.09 | 0.21 * | −0.14 | −0.01 | 0.24 * | −0.04 | 0.01 |
| Residence area c | 0.07 | −0.02 | −0.23 | −0.28 | −0.24 | 0.06 | 0.33 | 0.13 | −0.04 | −0.08 | −0.17 | −0.03 | −0.16 | 0.05 | 0.03 |
| Insecticide use d | 0.05 | 0.07 | 0.11 | 0.06 | 0.002 | 0.13 | −0.08 | −0.09 | −0.18 | 0.19 * | −0.17 | −0.12 | 0.12 | 0.03 | 0.12 |
| Food source e | 0.04 | −0.03 | −0.01 | 0.52 * | 0.36 | 0.04 | 0.35 | −0.02 | 0.05 | 0.34 | 0.11 | 0.09 | 0.14 | −0.29 | −0.09 |
| Water source f | |||||||||||||||
| Rainwater | −0.13 | 0.08 | −0.01 | −0.10 | −0.09 | −0.12 | −0.14 | −0.05 | 0.06 | 0.15 | −0.28 | −0.04 | −0.12 | 0.06 | 0.04 |
| Well | −0.10 | 0.18 | −0.09 | −0.09 | −0.13 | −0.09 | −0.02 | 0.03 | 0.07 | 0.08 | −0.16 | −0.09 | −0.01 | −0.01 | 0.09 |
| Bottled | −0.05 | 0.03 | −0.00 | −0.04 | 0.07 | −0.05 | −0.04 | −0.01 | 0.003 | 0.04 | −0.13 | −0.04 | −0.13 | −0.03 | 0.04 |
| Occupation g | |||||||||||||||
| Worker | 0.02 | −0.01 | −0.11 | 0.00 | 0.15 | 0.03 | 0.12 | 0.13 | −0.01 | 0.12 | −0.27 | 0.02 | −0.14 | −0.04 | −0.02 |
| Farmers | 0.14 | 0.18 | 0.02 | 0.12 | 0.06 | 0.09 | −0.10 | 0.08 | 0.23 | −0.08 | −0.27 | 0.14 | −0.20 | −0.05 | −0.14 |
| Teacher | −0.04 | 0.07 | 0.22 * | 0.07 | 0.19 * | −0.04 | 0.07 | −0.02 | 0.03 | 0.01 | −0.09 | −0.01 | 0.05 | 0.03 | 0.01 |
| Fishing | 0.01 | −0.01 | 0.07 | −0.11 | −0.06 | 0.003 | −0.12 | 0.002 | −0.01 | 0.01 | −0.04 | −0.01 | 0.05 | 0.24 * | 0.01 |
Values shown were standard multiple regression analyses coefficient. a Persistent organic pollutants (POPs) were log 10 transformed before analysis. b Para 0 as the reference category. c Inland as reference category for residence. d Participants who do not use insecticide as reference. e Food source from village as reference. f Using river or pond water as reference. g Women who work as housewife as reference. * p < 0.05; ** p < 0.001. Significant findings highlighted in bold.