Table 1.

Descriptive statistics and univariate association for the risk of cerebrovascular disease death

Variable	Mean	SD	Median	Q1	Q3	β	SE	p value
CVD deaths	62	14	60	51	71
PM2.5 (μg/m3)	55	39	46	29	69	1.653 × 10−3	9.219 × 10−5	< 0.001
PreAvg (kPa)	101.61	0.88	101.51	100.82	102.26	0.1576	0.0045	< 0.001
PreMax (kPa)	101.80	0.90	101.84	101.01	102.49	0.1586	0.044	< 0.001
PreMin (kPa)	101.34	0.87	101.35	100.58	103.67	0.1531	0.0046	< 0.001
TemAvg (°C)	17	9	18	9	24	− 0.0172	0.0004	< 0.001
TemMax (°C)	21	9	22	13	28	− 0.0160	0.0004	< 0.001
TemMin (°C)	14	9	15	6	22	− 0.0168	0.0004	< 0.001
HumAvg (%)	70	13	72	62	79	− 0.0011	0.0003	< 0.001
HumMin (%)	51	18	51	38	63	− 0.0011	0.0002	< 0.001
RainVol (mm)	33	104	0	0	11	− 0.0002	4.055 × 10−5	< 0.001
Windspd (m/s)	2.8	1.0	2.7	2.1	3.4	− 0.0187	0.0041	< 0.001
WindMax (m/s)	5.2	1.2	5.0	4.3	5.8	− 0.0066	0.0032	0.0419
WindExt (m/s)	8.6	2.2	8.2	7.0	9.8	− 0.0019	0.0017	0.278
Sunshine (h)	4.7	4.0	4.8	0	8.2	− 0.0048	0.0010	< 0.001

CVD deaths stands for the deaths for cerebrovascular diseases. PreAvg, PreMax, and PreMin stand for the daily average, maximum, and minimum atmospheric pressure, respectively. TemAvg, TemMax, and TemMin stand for the daily average, maximum, and minimum temperature, respectively. HumAvg and HumMin stand for the daily average and minimum humidity measured as percentage. RainVol stands for the daily rain volume. Windspd, WindMax, and WindExt are daily average, maximum, and extreme wind speed, respectively. SD stands for standard deviation. Q1 and Q3 stand for the first and third quartiles. β stands for regression coefficient for the variable in generalized linear regression model, accompanied by SE (standard error) and p value