Table 2.

Empirical coverage probabilities (median lengths) of the 95% confidence intervals for the ratio (Part A) and the difference (Part B) of different quantiles of cost between two groups

Part A: Ratios of quantiles
			Light censoring		Heavy censoring
Quantile	Sample size	Method	Uniform survival	Exponential survival	Uniform survival	Exponential survival
25%	100	SW	0.975 (0.490)	0.976 (0.492)	0.980 (0.554)	0.980 (0.592)
		EF	0.973 (0.489)	0.978 (0.474)	0.986 (0.554)	0.988 (0.546)
	300	SW	0.967 (0.266)	0.960 (0.267)	0.975 (0.305)	0.977 (0.320)
		EF	0.967 (0.263)	0.972 (0.257)	0.979 (0.297)	0.976 (0.292)
50%	100	SW	0.974 (0.418)	0.976 (0.454)	0.971 (0.486)	0.976 (0.538)
		EF	0.973 (0.415)	0.983 (0.437)	0.976 (0.477)	0.982 (0.498)
	300	SW	0.967 (0.240)	0.970 (0.252)	0.969 (0.273)	0.971 (0.297)
		EF	0.971 (0.236)	0.975 (0.242)	0.974 (0.265)	0.973 (0.276)
75%	100	SW	0.978 (0.489)	0.975 (0.531)	0.978 (0.567)	0.977 (0.624)
		EF	0.981 (0.480)	0.973 (0.518)	0.977 (0.554)	0.979 (0.591)
	300	SW	0.966 (0.266)	0.968 (0.297)	0.967 (0.310)	0.971 (0.339)
		EF	0.964 (0.261)	0.968 (0.291)	0.967 (0.303)	0.974 (0.326)

Part B: Differences of quantiles
			Light censoring		Heavy censoring
Quantile	Sample size	Method	Uniform survival	Exponential survival	Uniform survival	Exponential survival
25%	100	SW	0.974 (6013)	0.970 (5518)	0.973 (6857)	0.976 (6641)
		EF	0.977 (5984)	0.972 (5266)	0.979 (6756)	0.985 (6111)
	300	SW	0.963 (3366)	0.969 (3069)	0.970 (3880)	0.960 (3653)
		EF	0.965 (3286)	0.971 (2903)	0.967 (3736)	0.967 (3327)
50%	100	SW	0.973 (6769)	0.986 (6304)	0.967 (7695)	0.977 (7416)
		EF	0.973 (6620)	0.980 (5999)	0.977 (7424)	0.977 (6794)
	300	SW	0.955 (3754)	0.967 (3472)	0.958 (4286)	0.968 (4124)
		EF	0.957 (3664)	0.961 (3333)	0.958 (4084)	0.974 (3780)
75%	100	SW	0.979 (9797)	0.977 (9381)	0.976 (11375)	0.976 (11115)
		EF	0.979 (9539)	0.977 (9148)	0.980 (11014)	0.976 (10463)
	300	SW	0.965 (5280)	0.974 (5167)	0.977 (6045)	0.977 (5907)
		EF	0.964 (5197)	0.975 (5021)	0.977 (5859)	0.980 (5574)