Additional file 1.

Sensitivity of saving costs (US$) or increment QALYs to different assumptions for prevention strategies or control. This file involved the results of sensitivity analyses to different assumptions for different strategies, figures in tables were saving costs (US$) or increment QALYs. The file consisted of four separate sheets. Sheet 1 named “Performance and Compliance” involving the sensitivity of saving costs (US$) and increment QALYs to different compliance and detection level of screening at different initiation ages. The sheet 2–4 named “Initiation age of 25”, “Initiation age of 40” and “Initiation age of 60” respectively, involving the sensitivity of saving costs (US$) or increment QALYs to different assumptions for preventions strategies starting at age of 25, 40 and 60 years. In each sheet, the “OGTT” means oral glucose tolerance test. “IGT” means impaired glucose tolerance. “QALYs” means quality-adjusted life-years. As shown in sheet 1, decreasing the detection level of IGT and of the compliance level of screening would increase the costs per subject, and would result in a reduction of health effectiveness of subjects with diabetes or IGT in prevention groups. Sheet 2–4 showed the sensitivity of saving costs (US$) or increment QALYs to 20% increase or decrease in most assumptions, except the incidence of IGT which increased 200% and decreased 50% at all initiation ages. The insensitive results still supported the main conclusion that screening and intervention strategies for diabetes were cost-saving in China.

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Liu et al. BMC Public Health 2013 13:729   doi:10.1186/1471-2458-13-729