Table 6.

Multilevel models of health score and longest duration of good air/worst air in summer/spring.

	Longest Duration of Good Air in Spring/Summer				Longest Duration of Good Air in Spring/Summer
	Central/Western China (n = 7473)		Eastern China (n = 4480)		Central/Western China (n = 7473)		Eastern China (n = 4480)
	Estimates	p-Value	Estimates	p-Value	Estimates	p-Value	Estimates	p-Value
Fixed effects					Not Converge!
Intercept	13.960	0.059	36.613	0.445			−28.276	0.361
Education
No education	Reference		Reference				Reference
Elementary school	0.063	0.889	0.910	0.261			0.886	0.302
Middle	−0.865	0.271	1.778	0.082			1.749	0.088
High school	1.417	0.119	−1.321	0.460			−1.450	0.382
Higher education	−0.970	0.016	−0.182	0.825			−0.162	0.848
Sex
Male	Reference		Reference				Reference
Female	−2.819	0.000	−2.992	0.000			−3.0	0.000
Marital status
Married	Reference		Reference				Reference
Married but not living with spouse	1.526	0.000	1.194	0.190			1.222	0.172
Not Married	3.586	0.197	0.277	0.939			0.292	0.911
Widowed	0.481	0.837	−6.711	0.028			−6.685	0.029
Income (CNY) §,#	1.391	0.000	1.056	0.000			1.063	0.000
Life Satisfaction	3.684	0.000	4.238	0.000			4.256	0.000
Longest duration of good air in summer and spring	0.067	0.026	−0.632	0.144			-	-
Longest duration of worst air in summer and spring	-	-	-	-			0.928	0.105
Gini coefficient	−7.034	0.294	−30.684	0.231			−3.755	0.125
Log number of beds per person	4.424	0.012	4.908	0.706			14.951	0.168

Note: the results are after adjustment for demographic characteristics and stratified by region (only significant variables included in model); * p-value < 0.05; ^§ log transformation; ^# CNY: Chinese Yuan; -: not available.