Table 3.
Percent change in the number of Psychiatric Emergency Visits (PEVs) with their 95% Confidence Intervals for an increase of 10 μg/m3 in lag 0 in the air pollutant for Single and Multi-pollutant models during the warmer season (April to September)
| Model | PM10 | NO2 | O3 | |
|---|---|---|---|---|
| Change PEVs (%) (95% CI) | Change PEVs (%) (95% CI) | Change PEVs (%) (95% CI) | ||
| Single Pollutant | Crudeq | 3.4 (0.3–6.6) | -0.2 (−2.11.7) | 0.7 (−0.3–1.7) |
| Single Pollutant | Adjustedb | 3.5 (0.4–6.8) | 0.0 (0.981–1.019) | 0.6 (−0.5–1.6) |
| Two-pollutants | ||||
| PM10 + NO2 | Crude | 3.6 (0.3–6.9) | −0.5 (−2.4–1.4) | |
| PM10 + NO2 | Adjusted | 3.6 (0.4–7.0) | −0.4 (−2.3–1.6) | |
| PM10 + O3 | Crude | 3.0 (0.7–5.4) | 0.5 (−0.6–1.5) | |
| PM10 + O3 | Adjusted | 3.6 (0.4–7.0) | 0.3 (−0.5–1.2) | |
| NO2 + O3 | Crude | 0.6 (−1.7–2.9) | 0.9 (−0.3–2.1) | |
| NO2 + O3 | Adjusted | 0.7 (−1.3–2.7) | 0.8–0.4-2.0) | |
| Three-pollutants | ||||
| PM10 + NO2 + O3 | Crude | 3.2 (−0.2–6.8) | −0.1 (−2.5–2.3) | 0.4 (−0.9–1.7) |
| PM10 + NO2 + O3 | Adjusted | 3.3 (−0.2–6.9) | −0.1 (−2–5-2.4) | 0.3 (−1.0–1.6) |
aModel with only air pollutants
bAdjusted = Model adjusting for daily mean temperature (continuous) and public Swedish holiday (Yes/No)