Input | Value | Source |
Tax, price and sugar content per litre of SSB | ||
Tax (ZAR cents) | 2.21 cents/g of sugar over 4 g/100 mL | National Treasury11 12 |
Sugar content per litre (g) | 106 g | National Treasury11 12 |
Price per litre | ZAR11.45 | National Treasury11 12 |
Mortality due to diabetes mellitus (T2DM) as percentage of all deaths | 5.4% | Statistics South Africa |
Relative risk of T2DM by age group per each unit increase in BMI | ||
<30 | 1.37 | IHME51 |
30–34 | 1.34 | |
35–39 | 1.32 | |
40–44 | 1.29 | |
45–49 | 1.27 | |
50–54 | 1.24 | |
55–59 | 1.22 | |
60–64 | 1.20 | |
65–69 | 1.18 | |
70–74 | 1.15 | |
75–79 | 1.13 | |
80+ | 1.10 | |
Average proportion of healthcare costs paid as OOP payment by income quintile | ||
Quintile 1 | 21% | NIDS wave 447, NDoH, authors’ calculations |
Quintile 2 | 18% | |
Quintile 3 | 41% | |
Quintile 4 | 56% | |
Quintile 5 | 82% | |
Income per capita quintiles in ZAR | ||
Quintile 1 | <6486 (US$525) | NIDS wave 447, NDoH, authors’ calculations |
Quintile 2 | 6486 to 13 818 (US$525–US$1119) | |
Quintile 3 | 13 819–28 091 (US$1119–US$2275) | |
Quintile 4 | 28 092–71 478 (US$2275–US$5788) | |
Quintile 5 | >71 478 (US$5788) | |
Labour force participation rate | ||
Quintile 1 | 0.51 | GHS68, authors’ calculations |
Quintile 2 | 0.53 | |
Quintile 3 | 0.61 | |
Quintile 4 | 0.71 | |
Quintile 5 | 0.78 | |
Absenteeism and presenteeism ratios | ||
Number of excess sick days in a year | 8.6 | Bommer et al 57 based on data from Guariguata et al 56 |
Productivity shortfall | 0.6% | Bommer et al 57 based on data from Seuring et al 58 |
US$1=ZAR12.35 (as of May 2018). Source: South Africa Revenue Service (SARS) available at http://tools.sars.gov.za/rex/Rates/Default.aspx.
BMI, body mass index; GHS, General Household Survey; IHME, Institute for Health Metrics and Evaluation; NDoH, National Department of Health; NIDS, National Income Dynamics Study; OOP, out-of-pocket; T2DM, type 2 diabetes mellitus; ZAR, South African rand.