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. Author manuscript; available in PMC: 2023 May 23.
Published in final edited form as: J Immunotoxicol. 2021 Dec;18(1):85–92. doi: 10.1080/1547691X.2021.1922957

Table 1.

Characteristics of participants included in analysis of hepatitis type A and B, diphtheria, and tetanus with PFAS concentrations at age 28years.

Characteristics Hepatitis type A and B analyses
Diphtheria and tetanus analyses
Total cohort (n = 399) Male (n = 220, 55.1%) Female (n = 179; 44.9%) p-Valuea Total cohort (n = 281 ) Male (n = 133, 47.3%) Female (n = 148, 52.7%) p-Valuea

BMI, n (%) (kg/m2) 0.47 0.05
 <18 1 (0.3) 0 (0.0) 1 (0.6) 2 (0.7) 0 (0.0) 2 (1.4)
 18–25 182 (45.6) 98 (44.5) 84 (46.9) 135 (48.0) 56 (42.1) 79 (53.4)
 ≥25 216 (54.1) 122 (55.5) 94 (52.5) 144 (51.2) 77 (57.9) 67 (45.3)
Smoking status, n (%) 0.14 0.38
 Current 206 (51.6) 105 (47.7) 101 (56.4) 140 (49.8) 72 (54.1) 68 (45.9)
 Ever 52 (13.0) 29 (13.2) 23 (12.8) 37 (13.2) 15 (11.3) 22 (14.9)
 Never 139 (34.8) 86 (39.1) 53 (29.6) 103 (36.7) 46 (34.6) 57 (38.5)
 Missing 2 (0.5) 0 (0.0) 2 (1.1) 1 (0.4) 0 (0.0) 1 (0.7)
Antibody concentrations, median (IQR)
 Baseline anti-diphtheria (IU/ mL) - - - 0.01 (0.05) 0.01 (0.05) 0.01 (0.05) 0.23
 Follow-up anti-diphtheria (IU/ mL) - - - 1.10 (2.92) 1.60 (3.93) 0.57 (2.10) <0.001
 Baseline anti-tetanus (IU/ mL) - - - 0.12 (0.52) 0.12 (0.55) 0.13 (0.52) 0.61
 Follow-up anti-tetanus (IU/ mL) - - - 6.60 (12.80) 7.50 (13.8) 5.65 (8.10) 0.03
 Follow-up anti-FIAV (S/CO) 6.11 (4.00) 5.61 (3.78) 6.85 (3.73) 0.002 - - -
 Follow-up anti-FIBs (mlU/mL) 56.5 (143.60) 66.76 (159.48) 44.28 (113.96) 0.006 - - -
a

Chi-square test for BMI and smoking status and Wilcoxon rank-sum test for antibody and PFAS concentrations.

b

IQR: interquartile range; S/CO: signal-to-cutoff ratio; PFAS: per- and polyfluoroalkyl substance; PFOS: perfluorooctane sulfonate; PFOA: perflourooctanoate; PFHxS: perfluorohexanesulfonic acid; PFNA: perfluoronona-noate; PFDA: perfluorodecanoate.