Table 1.

Descriptive statistics of the meteorological variables and air pollution variable for 350 primary SARS cases included in this study; People's Republic of China, 2003.

Variable	Mean (SD)	Minimum	Maximum
Daily average temperature (DAT, °C)	17.47 (4.56)	3.73	29.20
Daily average air pressure (DAAP, kPa)	96.54 (5.11)	80.55	102.09
Daily average relative humidity (DARH, %)	61.11 (18.01)	22.00	96.80
Daily average wind velocity (DAWV, m/s)	2.13 (0.89)	0	7.00
Daily hours of sunshine (DHS, h)	6.12 (3.31)	0	12.40
Air pollution index (API)	87.90 (25.26)	34.33	260.25

SD, standard deviation.