Table 1:
Characteristics of study population stratified by methylparaben exposure in the GESTation and the Environment (GESTE) cohort
| No Methylparaben (N=280) | Methylparaben (N=65) | Total (N=345) | P value | |
|---|---|---|---|---|
| Child sex | 0.81 | |||
| Female (n (%)) | 136 (49.3) | 30 (47.6) | 166 (49.0) | |
| Male (n (%)) | 140 (50.7) | 33 (52.4) | 173 (51.0) | |
| Missing (n (%)) | 6 (1.7) | |||
| Maternal age | 0.23 | |||
| Mean (SD) | 29.2 (4.7) | 28.4 (5.6) | 29.0 (4.9) | |
| Missing (n (%)) | 1 (0.2) | |||
| Maternal BMI | 0.08 | |||
| Mean (SD) | 26.4 (7.8) | 24.6 (4.1) | 26.0 (7.3) | |
| Missing (n (%)) | 15 (4.3) | |||
| Family income (Canadian dollars) | 0.87 | |||
| < 60,000/year (n (%)) | 129 (51.4) | 31 (52.5) | 160 (51.6) | |
| > 60,000/year (n (%)) | 122 (48.6) | 28 (47.5) | 150 (48.4) | |
| Missing (n (%)) | 35 (10.1) | |||
| Maternal education | 0.86 | |||
| No College or University (n (%)) | 124 (44.3) | 28 (43.1) | 152 (44.1) | |
| College or University (n (%)) | 156 (55.7) | 37 (56.9) | 193 (55.9) | |
| Missing (n (%)) | 0 (0.0) | |||
| Smoked during pregnancy | 0.38 | |||
| No smoking (n (%)) | 233 (84.7) | 57 (89.1) | 290 (85.5) | |
| Smoking (n (%)) | 42 (15.3) | 7 (10.9) | 49 (14.5) | |
| Missing (n (%)) | 6 (1.7) | |||
| Alcohol during pregnancy | 0.69 | |||
| No alcohol (n (%)) | 213 (77.5) | 51 (79.7) | 264 (77.9) | |
| Alcohol (n (%)) | 62 (22.5) | 13 (20.3) | 75 (22.1) | |
| Missing (n (%)) | 6 (1.7) |
Notes: Study sample data before imputation and inverse probability weighting shown. P values from chi-square goodness of fit tests for binary variables and two-sample t-tests for continuous variables.