Table 2.
Summary Statistics of Meteorological and Air Pollution Variables During All Days in the ICU Analysis Including Dust Storm Days, Control Days, and Lag Days
| All days | Dust storm | |||
|---|---|---|---|---|
| No | Yes | |||
| Mean temperature (°F) | ||||
| Mean (SD) | 82.8 (14.6) | 82.3 (14.7) | 89.9 (11.3) | |
| Min, Max | 25.9, 105.4 | 25.9, 105.4 | 48.5, 104.3 | |
| Dew point temperature (°F) | ||||
| Mean (SD) | 46.7 (14.3) | 46.3 (14.4) | 52.9 (11.6) | |
| Min, Max | −2.2, 72.2 | −2.2, 72.2 | 10.8, 71.7 | |
| Precipitation (tenths of inches) | ||||
| Mean (SD) | 0.3 (2.5) | 0.3 (2.6) | 0.2 (1.2) | |
| Min, Max | 0.0, 116.6 | 0.0, 116.6 | 0.0, 13.4 | |
| PM 2.5 (μg/m 3 ) | ||||
| Mean (SD) | 8.9 (6.5) | 8.7 (6.3) | 12.0 (8.3) | |
| Min, Max | 0.3, 107.8 | 0.3, 107.8 | 2.6, 62.0 | |
| PM 10 (μg/m 3 ) | ||||
| Mean (SD) | 35.3 (24.4) | 32.9 (19.1) | 67.9 (50.6) | |
| Min, Max | 5.0, 589.0 | 5.0, 230.5 | 13.0, 589.0 | |
| Ozone (ppb) | ||||
| Mean (SD) | 51.4 (12.5) | 51.2 (12.7) | 54.2 (9.5) | |
| Min, Max | 6.0, 98.0 | 6.0, 98.0 | 19.0, 86.0 | |
Note. Mean, standard deviation (SD), minimum, and maximum are shown.