Table 5

Sensitivity analyses for healthcare utilisation rate and wage rate for the extended cost-effectiveness analysis of 10% tax on sugar-sweetened beverages in South Africa

TotalQuintile 1Quintile 2Quintile 3Quintile 4Quintile 5
Panel A. Healthcare utilisation rate set to 30-day use of healthcare services
 T2DM deaths averted*5153735954115412261084
 Government healthcare savings (ZAR million)*106222329826020773
 Changes in annual tax revenues (ZAR million)54909151021111811911245
 Financial risk protection (cases of poverty averted using FPL)*7536675338932272450
 Financial risk protection (cases of catastrophic expenditures averted)*20 73637634289555342222909
 Annual indirect cost savings (ZAR million)12.20.30.61.02.28.1
Panel B. Wage set to minimum wage across all quintiles
 T2DM deaths averted*789812601561182018601397
 Government healthcare savings (ZAR million)*169038348841031494
 Changes in annual tax revenues (ZAR million)54909151021111811911245
 Financial risk protection (cases of poverty averted using FPL)*12 1791155559550663630
 Financial risk protection (cases of catastrophic expenditures averted)*32 37764557020876064180
 Annual indirect cost savings (ZAR million)9.41.21.62.12.52.0
  • *Estimated over 20 years.

  • FPL, food poverty line (ZAR321 or US$21 per capita per month); T2DM, type 2 diabetes mellitus; ZAR, South African rand.