Characteristics of 466 non-smoking, nulliparous female textile workers in Anhui, China, by serum total DDT concentrations
| Serum total DDT | |||||
|---|---|---|---|---|---|
| 1st quartile (low) | 2nd quartile | 3rd quartile | 4th quartile (high) | Total | |
| *p,p′-DDT/p,p′-DDE (%) = (p,p′-DDT/p,p′-DDE)×100. | |||||
| Sample size | 116 | 117 | 117 | 116 | 466 |
| Serum total DDT (ng/g) | |||||
| Range | 5.52–19.2 | 19.2–27.8 | 27.8–41.2 | 41.6–113 | 5.52–113 |
| Mean (SD) | 13.5 (3.6) | 23.5 (2.5) | 34.0 (4.0) | 57.1 (13.9) | 32.0 (17.8) |
| p,p′-DDT (ng/g) | |||||
| Range | 0.4–2.2 | 0.5–3.2 | 0.6–5.6 | 0.9–13.1 | 0.4–13.1 |
| Mean (SD) | 2.2 (1.0) | 1.4 (0.6) | 1.8 (0.9) | 3.0 (1.8) | 1.8 (1.3) |
| p,p′-DDE (ng/g) | |||||
| Range | 4.8–17.8 | 15.9–26.8 | 25.2–39.6 | 38.3–97.5 | 4.8–97.5 |
| Mean (SD) | 12.1 (3.4) | 21.8 (2.5) | 31.7 (3.9) | 53.3 (12.9) | 29.7 (16.8) |
| p,p′-DDT/p,p′-DDE (%)* | |||||
| Range | 2.8–25.1 | 2.0–16.1 | 1.6–22.4 | 1.6–18 | 1.6–25.1 |
| Mean (SD) | 8.3 (3.8) | 6.3 (2.9) | 5.7 (2.9) | 5.7 (2.9) | 6.5 (3.3) |
| Age (years), mean (SD) | 24.5 (1.3) | 24.8 (1.5) | 25.0 (1.5) | 25.3 (1.9) | 24.9 (1.6) |
| Height (cm), mean (SD) | 157.6 (4.6) | 157.8 (5.3) | 157.4 (5.0) | 157.5 (5.4) | 157.6 (5.1) |
| Weight (kg), mean (SD) | 50.1 (5.6) | 49.2 (5.3) | 49.8 (6.2) | 47.8 (5.4) | 49.2 (5.7) |
| Body mass index (kg/m2), mean (SD) | 20.1 (1.9) | 19.8 (1.9) | 20.1 (2.1) | 19.3 (1.8) | 19.8 (2.0) |
| Education, n (%) | |||||
| Middle or below | 83 (71.6) | 76 (65.0) | 66 (56.4) | 76 (65.5) | 301 (64.6) |
| High or above | 33 (28.4) | 41 (35.0) | 51 (43.6) | 40 (34.5) | 165 (35.4) |
| Exposed to passive smoking, n (%) | |||||
| No | 61 (53.0) | 47 (40.2) | 46 (40.4) | 39 (34.8) | 193 (42.1) |
| Yes | 54 (47.0) | 70 (59.8) | 68 (59.6) | 73 (65.2) | 265 (57.9) |