Air Pollutants, Climate, and the Prevalence of Pediatric Asthma in Urban Areas of China

Table 3

Descriptive statistical analysis of the variables.

Variables		Minimum	Maximum	Mean	Std. deviation
Asthma prevalence	43	0.420	5.730	2.252	1.297
PM10	43	0.024	0.153	0.091	0.026
SO2	43	0.007	0.091	0.042	0.018
NO2	43	0.016	0.106	0.042	0.015
Relative humidity	43	32.000	81.000	66.008	10.366
Air temperature	43	4.750	24.440	15.125	4.994
Precipitation	43	15.750	211.390	82.924	46.516
Hours of sunshine	43	67.880	265.810	166.087	43.524

Note. PM10: particulates with an aerodynamic diameter of 10 mm; SO₂: sulfur dioxide; NO₂: nitrogen dioxide.