Changes of the Types and Daily Costs of Topical Antiglaucoma Medications from 2006 to 2021 in China

Table 4

The proportion of the daily cost of antiglaucoma medications in average daily disposable income of the Chinese residents in 2006 and 2021.

Year	Cost/day (US dollars)				Proportion (rural)^a (%)				Proportion (urban)^b (%)
	Max	Min	Mean ± SD	^d	Max	Min	Mean ± SD	^d	Max	Min	Mean ± SD	^d
2006	0.91	0.03	0.39 ± 0.30	—	76.47	2.52	32.52 ± 24.87	—	23.39	0.77	9.95 ± 7.61	—
2021^c	2.51	0.05	0.47 ± 0.56	0.499	30.84	0.61	5.78 ± 6.89	<0.001	12.32	0.25	2.31 ± 2.75	<0.001
2021 (unit dose package excluded)	1.06	0.05	0.32 ± 0.21	0.207	13.02	0.61	3.94 ± 2.64	<0.001	5.2	0.25	1.57 ± 1.05	<0.001

^aThe proportion of daily cost of antiglaucoma medications in daily disposable income of rural residents. ^bThe proportion of daily cost of antiglaucoma medications in daily disposable income of urban residents. ^cAll the antiglaucoma drugs were included in calculation besides the same brand drugs already in use in 2006. ^d values were analyzed by t-test, respectively, for all the antiglaucoma drugs in 2021 and antiglaucoma drugs without unit dose package in 2021, compared with those in 2006. 1 US dollar = 8.2889 CNY (2006). 1 US dollar = 6.3757 CNY (2021).