Table 2.

Results of the balancing check for the generalized propensity score (GPS)

Covariate	Class of exposure	Marginal t	GPS-adjusted t
Temperature (lag 0-3)	(0, 20)	5.60	-2.57
	[20, 40)	14.15	1.68
	[40, 70)	-0.39	-0.26
	[70+)	-20.78	-3.00
Influenza epidemics	(0, 20)	-2.80	-0.44
	[20, 40)	-7.47	-2.87
	[40, 70)	1.32	3.43
	[70+)	8.92	0.47
Summer indicator	(0, 20)	7.93	-2.19
	[20, 40)	14.30	2.39
	[40, 70)	-3.09	-0.77
	[70+)	-18.46	-2.48
Holidays indicator	(0, 20)	1.91	-0.07
	[20, 40)	0.02	-0.05
	[40, 70)	-2.74	-2.81
	[70+)	1.97	2.58
Humidity (lag 0)	(0, 20)	-5.78	-0.13
	[20, 40)	-5.91	1.05
	[40, 70)	-0.15	-2.78
	[70+)	10.69	1.78
Weekend indicator	(0, 20)	4.92	2.27
	[20, 40)	1.79	-1.33
	[40, 70)	-1.39	-1.13
	[70+)	-3.35	0.64
Heat episodes	(0, 20)	-2.25	-0.96
	[20, 40)	1.77	-0.15
	[40, 70)	3.48	2.43
	[70+)	-4.73	-1.99

Marginal and GPS-adjusted t statistics for the mean difference between one class of exposure and the others as a whole, for a set of selected covariates