Table 1.
Demographic information and PFAS pre and post intervention
| Total Sample (n=346)a | p-value (Paired T-tests) b | p-value (WSRT) c | |
|---|---|---|---|
|
| |||
| Age (Mean + SD) | 52.4+ 13.1 years | ||
| Sex (Count) | |||
| Male | 89 (25.7%) | ||
| Female | 257 (74.3%) | ||
| Race (Count) | |||
| African American | 10 (2.89%) | ||
| Caucasian | 330 (95.4%) | ||
| Other | 6 (1.73%) | ||
| Current County residency (Mean + SD) | 30.3+ 18.6 years | ||
| Smoking History | |||
| Current Smoker | 23 (6.65%) | ||
| Quit <1 year ago | 8 (2.31%) | ||
| Quit >1 year ago | 96 (27.7%) | ||
| Never Smoked | 219 (63.3%) | ||
| Total cholesterol (Mean + SD) | |||
| Pre Intervention | 197.6 + 38.8 mg/dL | p<0.001 | |
| Post Intervention | 190.9 + 35.6 mg/dL | ||
| LDL cholesterol (Mean + SD) | |||
| Pre Intervention | 115.0 + 34.5 mg/dL | p<0.01 | |
| Post Intervention | 112.6 + 31.6 mg/dL | ||
| HDL cholesterol (Mean + SD) | |||
| Pre Intervention | 46.8 + 16.8 mg/dL | p=0.13 | |
| Post Intervention | 45.7 + 15.5 mg/dL | ||
| Body mass index (Mean + SD) | |||
| Pre Intervention | 31.6 + 6.8 (Kg/m2) | p<0.01 | |
| Post Intervention | 31.4 + 6.9 (Kg/m2) | ||
| PFBS (Q1, Q3) | |||
| Pre Intervention | 0.04 (0.04, 0.04) ppb | p=0.190 | p=0.205 |
| Post Intervention | 0.04 (0.04, 0.04) ppb | ||
| PFOS (Q1, Q3) | |||
| Pre Intervention | 13.2 (7.19, 22.4) ppb | p<0.001 | p<0.001 |
| Post Intervention | 11.2 (6.16, 18.8) ppb | ||
| PFNA (Q1, Q3) | |||
| Pre Intervention | 1.04 (0.71, 1.59) ppb | p=0.241 | p=0.155 |
| Post Intervention | 1.06 (0.721, 1.42) ppb | ||
| PFOA (Q1, Q3) | |||
| Pre Intervention | 2.20 (1.44, 3.04) ppb | p<0.001 | p<0.001 |
| Post Intervention | 1.99 (1.35, 2.74) ppb | ||
| PFHxS (Q1, Q3) | |||
| Pre Intervention | 0.964 (0.386, 1.78) ppb | p=0.016 | p=0.006 |
| Post Intervention | 0.806 (0.384, 1.51) ppb | ||
| PFHpA (Q1, Q3) | |||
| Pre Intervention | 0.400 (0.04, 0.681) ppb | p=0.034 | p=0.051 |
| Post Intervention | 0.337 (0.04, 0.645) ppb | ||
a
Sample size may be less for some variables due to missing or suppressed data. Demographic information is based on pre-intervention responses.
b
For fluorinated compounds, matched pairs analysis was completed using log transformed data; log(x+1).
c
Matched pairs analysis was completed using Wilcoxon Signed Rank Test using non-log transformed data. PFBS= Perfluorobutanesulfonic acid; PFOS= Perfluorooctanesulfonic acid; PFNA= Perfluorononanoic acid; PFOA= Perfluorooctanoic acid; PFHxS= Perfluorohexane sulfonic acid; PFHpA= Perfluoroheptanoic acid. p<0.05 was considered statistically significant.