From: Estimation of the effects of heavy Asian dust on respiratory function by definition type
Type of heavy–AD definition | ||||
---|---|---|---|---|
JMA definition | Daily median level ≥ 0.07 km−1 (using LIDAR) | Hourly level ≥ 0.1 km−1 (using LIDAR) | Hourly level ≥ 0.07 km−1 (using LIDAR) | |
Lag time (days) | Change in PEF (L/min) [95% CI] | Change in PEF (L/min) [95% CI] | Change in PEF (L/min) [95% CI] | Change in PEF (L/min) [95% CI] |
Lag 0 | −1.76a [−3.30, −0.21] | 0.85 [−0.86, 2.57] | −0.18 [−1.61, 1.25] | 0.38 [−0.60, 1.36] |
Lag 0–1 | −1.54a [−2.84, −0.25] | −0.09 [−1.48, 1.29] | −0.21 [−1.42, 0.99] | 0.35 [−0.53, 1.24] |
Lag 0–2 | −1.05 [−2.21, 0.11] | 0.14 [−1.11, 1.38] | 0.11 [−0.95, 1.17] | 0.40 [−0.44, 1.23] |
Lag 0–3 | −1.09a [−2.18, −0.01] | −0.04 [−1.19, 1.11] | 0.18 [−0.82, 1.17] | 0.11 [−0.70, 0.93] |