Table 5.
Associations between infant serum PFAA concentrations and duration of breastfeeding.
| Breastfeeding duration | n | PFOA | PFOS | PFNA | PFHxS | ||||
|---|---|---|---|---|---|---|---|---|---|
| Percent change (95% CI) | p‑Value | Percent change (95% CI) | p‑Value | Percent change (95% CI) | p‑Value | Percent change (95% CI) | p‑Value | ||
| Not breastfed | 18 | Ref | Ref | Ref | Ref | ||||
| ≤ 6 months | 14 | 13 (–46, 139) | 0.728 | –31 (–53, 1) | 0.058 | –24 (–43, 0) | 0.052 | –20 (–62, 70) | 0.562 |
| 7–12 months | 9 | 82 (–23, 334) | 0.168 | 40 (–9, 115) | 0.119 | 2 (–26, 41) | 0.875 | 45 (–38, 240) | 0.373 |
| > 12 months | 8 | 141 (4, 460) | 0.041 | 71 (9, 167) | 0.021 | 17 (–17, 63) | 0.356 | 46 (–40, 255) | 0.392 |
| Continuous (per month) | 49 | 6 (1, 10) | 0.014 | 4 (1, 7) | 0.002 | 1 (–1, 3) | 0.157 | 2 (–3, 7) | 0.289 |
| Estimates were based on models of infant lnPFAA concentrations adjusted for infant´s age (categorical in 6-month intervals). PFOA models were also adjusted for water district. | |||||||||