Table 6. The percent change in heart rate, blood pressure, and lung function for an interquartile range increase in air pollutant concentration stratified by the presence or absence of a reported mood disorder among children aged 6 to 17 years old who participated in the Canadian Health Measures Survey, 2007–2009 a.
| Physiologic outcome | Mood Disorder | NO2 (IQR = 11.48) | O3 (IQR = 17.00) | PM2.5 (IQR = 3.96) |
|---|---|---|---|---|
| Heart Rate (bpm) | Present | 1.8 (-2.51, 6.11) | 2.10 (-1.29, 5.50) | 0.07 (-2.04, 2.18) |
| Absent | 0.39 (-0.51, 1.29) | -0.36 (-1.16, 0.44)* | -0.25 (-0.76, 0.25) | |
| Systolic Pressure (mmHg) | Present | 1.24 (-1.69, 4.18) | 3.75 (1.62, 5.89) | 1.94 (0.56, 3.32) |
| Absent | 0.06 (-0.56, 0.69) | -0.44 (-1.00, 0.12)* | 0.06 (-0.30, 0.42)* | |
| Diastolic Pressure (mmHg) | Present | -0.76 (-3.57, 2.04) | 3.02 (0.86, 5.17) | -0.9 (-2.27, 0.48) |
| Absent | -0.32 (-0.9, 0.25) | -0.2 (-0.72, 0.31)* | -0.02 (-0.35, 0.31) | |
| FEV1 (%) | Present | -2.53 (-7.69, 2.63) | -6.18 (-10.63, -1.73) | -0.77 (-3.55, 2.01) |
| Absent | -1.95 (-3.06, -0.83) b | -1.08 (-2.08, -0.07)* | -0.09 (-0.74, 0.55) | |
| FVC (%) | Present | -5.82 (-11.27, -0.37) | -7.62 (-12.31, -2.92) | -2.86 (-5.79, 0.08) |
| Absent | -1.75 (-2.83, -0.67)* | -0.52 (-1.5, 0.47)* | -0.05 (-0.68, 0.58)* | |
| FEV1/FVC (%) | Present | -3.05(-5.8, -0.3) | -0.91(-3.33, 1.51) | -2.43 (-3.84, -1.02) |
| Absent | 0.2 (-0.45, 0.84)* | -0.65 (-1.23, -0.07) | -0.04 (-0.42, 0.33)* |
a Results are adjusted for age, gender, education, income, active and passive smoking (active, passive) and alcohol use
b Bold font indicates the 95% confidence intervals exclude zero.
*Interaction term is significant at p ≤ 0.05 between those with and without a mood disorder.