Per cent (%) increase in daily hospital admissions for the 0–14 yrs age range per interquartile range (IQR) increase of pollutants at different lags (0–4), Rome 1995–1997
| Variable | Lag | Particles | SO2 | NO2 | CO | O3 |
| IQR: 23.0 µg·m3 | IQR: 6.9 µg·m3 | IQR: 22.3 µg·m3 | IQR: 1.5 mg·m3 | IQR: 23.9 µg·m3 | ||
| Respiratory conditions (ICD-IX: 460–519) | ||||||
| 0 | 0.2(−2.2–2.6) | −0.7(−4.0–2.7) | 4.0(0.6–7.5) | 2.5(−0.3–5.5) | 3.3(−1.3–8.1) | |
| 1 | −0.7(−3.0–1.7) | −2.0(−5.2–1.3) | 2.0(−1.2–5.3) | 0.8(−2.1–3.8) | 5.4(0.2–10.9) | |
| 2 | −1.7(−4.0–0.6) | −0.8(−3.8–2.3) | 2.3(−0.9–5.5) | 0.2(−2.7–3.1) | 2.5(−2.1–7.3) | |
| 3 | 0.4(−1.9–2.8) | −1.9(−4.8–1.1) | 2.1(−1.0–5.3) | −1.0(−3.7–1.9) | 2.0(−2.5–6.6) | |
| 4 | 1.7(−0.6–4.2) | −0.2(−3.0–2.8) | 0.6(−2.4–3.8) | 3.2(0.4–6.2) | 0.8(−3.5–5.3) | |
| Acute respiratory infections (ICD-IX: 460–466; 480–486) | ||||||
| 0 | 1.3(−1.4–4.1) | −0.1(−3.9–3.8) | 4.0(0.2–8.0) | 2.5(−0.8–5.8) | 5.0(−0.3–10.5) | |
| 1 | −0.6(−3.3–2.1) | −2.7(−6.3–1.0) | 1.0(−2.5–4.6) | −0.1(−3.4–3.2) | 8.1(2.1–14.4) | |
| 2 | −1.0(−3.6–1.7) | −1.2(−4.5–2.2) | 2.7(−0.9–6.3) | 0.9(−2.3–4.3) | 4.3(−1.0–9.9) | |
| 3 | 0.7(−1.9–3.5) | −2.5(−5.7–0.9) | 2.5(−1.0–6.2) | −2.0(−5.1–1.2) | 4.9(−0.2–10.3) | |
| 4 | 2.2(−0.5–5.0) | 0.0(−3.2–3.3) | 1.2(−2.2–4.8) | 3.2(0.0–6.6) | 2.8(−2.2–8.0) | |
| Asthma (ICD-IX: 493) | ||||||
| 0 | −2.2(−7.5–3.5) | −2.6(−10.4–6.0) | 6.4(−1.4–14.8) | 6.3(−0.5–13.5) | −1.6(−11.3–9.1) | |
| 1 | −2.2(−7.5–3.5) | 4.3(−3.5–12.7) | 10.7(3.0–19.0) | 8.2(1.1–15.7) | 0.2(−10.8–12.5) | |
| 2 | −4.0(−9.2–1.6) | 5.5(−1.8–13.2) | 5.5(−1.8–13.3) | −0.7(−7.3–6.3) | 5.6(−5.0–17.2) | |
| 3 | 3.5(−2.2–9.4) | 2.8(−4.2–10.4) | 2.3(−4.8–9.9) | 3.5(−3.2–10.6) | −1.8(−11.3–8.7) | |
| 4 | 0.4(−5.1–6.3) | 1.0(−5.9–8.3) | −0.4(−7.3–7.0) | 4.8(−1.9–12.0) | −1.8(−11.2–8.6) | |
Data presented as per cent increase (95% confidence interval)
SO2: sulphur dioxide
NO2: nitrogen dioxide
CO: carbon monoxide
O3: ozone