Table 1 Baseline and exposure characteristics of the study participants
|  | Participants (N = 101) n (%) |
|---|---|
Sex, female | 48 (47.5%) |
Maternal education, > Year 12 | 71 (70.3%) |
Breastfeeding > 6 monthsa | 56 (55.4%) |
Main heater releasing combustion emissions into living spaceb | 35 (34.7%) |
Stress during pregnancy | Â |
No/hardly | 29 (28.7%) |
Sometimes/mostly | 72 (71.3%) |
Premature birth | 6 (5.9%) |
Any smoker in the housec | 17 (16.8%) |
Mother with history of asthma/allergic rhinitisd | 34 (33.7%) |
Father with history of asthma/allergic rhinitise | 35 (34.7%) |
Child has received a diagnosis of asthma | 15 (14.9%) |
Child has received a diagnosis of eczema/dermatitisf | 30 (29.7%) |
| Â | Mean (SD) Median [Q1-Q3] Range |
Age at blood collection (years) | 6.8 (1.0) |
|  | 7 [6–8] |
|  | 5–9 |
Age at baseline (months) | 29.4 (12.6) |
|  | 28 [19–38] |
|  | 7–64 |
IRSD decile | 3.9 (3.0) |
|  | 3 [1–6] |
|  | 1–10 |
Average prenatal fire-related PM2.5(μg/m3) | 2.7 (7.1) |
|  | 0.0 [0.0–1.7] |
|  | 0.0–44.2 |
Average postnatal fire-related PM2.5(μg/m3) | 3.7 (7.0) |
|  | 0.2 [0.0–2.5] |
|  | 0.0–30.2 |
Peak prenatal fire-related PM2.5(μg/m3) | 45.4 (107.2) |
|  | 0.0 [0.0–35.7] |
|  | 0.0–593.5 |
Peak postnatal fire-related PM2.5(μg/m3) | 59.5 (91.8) |
|  | 1.1 [0.0–97.0] |
|  | 0.0–447.1 |
Background PM2.5(μg/m3) | 6.0 (1.0) |
|  | 6.0 [5.6–6.6] |
|  | 0.8–8.4 |