Table 1.
Descriptive statistics.
| M or % | SD | Range | |
|---|---|---|---|
| Maternal history of recurrent depression (risk = 1) | 50% | ||
| Pubertal stage (Tanner stage) | 3.16 | 1.03 | 1.00–5.00 |
| Age (years) | 12.27 | 1.41 | 9.87–14.88 |
| Time of day of stressor task | 13:07 | 2:53 | 8:19–19:25 |
| Family income | 4.08 | 1.31 | 0.00–5.00 |
| Neighborhood poverty rate (percentile) | 17.75 | 18.17 | 0.03–88.46 |
| Anxiety | 37.78 | 15.10 | 8.00–71.00 |
| PM2.5 (μg/m3) | 10.46 | 1.38 | 6.52–14.20 |
| AUCg | 0.65 | 0.51 | 0.07–2.66 |
| AUCi | 0.01 | 0.39 | −0.95–1.05 |
Note. AUCg = area under the curve with respect to ground; AUCi = area under the curve with respect to increase; PM2.5 = particulate matter <2.5 μm. We present the descriptive statistics for time of day of stressor task in hours:minutes for the sake of clarity, but the metric of this variable is seconds since midnight. The family income mean of 4.08 corresponds to $75,000 to $100,000 per year, and the range of 0.00–5.00 corresponds to less than $10,000 per year to more than $100,000 per year.