Table 4. Threshold ratios of WTP (CNY (USD)/QALY) for RRD surgery to be cost-effective at probabilities of 50%, 70% and 90% compared with no treatment option.

	WTP [CNY(USD)/QALY]
Probability of being cost-effective	All (n = 98)	70s (n = 57)	80s (n = 41)
50%	33,000(5,246)	24,000(3,816)	70,000(11,129)
70%	35,000(5,564)	26,000(4,134)	76,000(12,083)
90%	39,000(6,200)	29,000(4,610)	88,000(13,991)

WTP, willingness to pay; CNY, Chinese Yuan; USD, US dollar; QALY, quality-adjusted life year.