Table 1.
Socio-demographic and socio-economic status information of participants (aged 15—19 years) from South African surveys
| South African surveys | ||||||
|---|---|---|---|---|---|---|
| SADHS 1998 | YRBS 2002 | YRBS 2008 | YRBS 2011 | SANHANES 2012 | SADHS 2016 | |
| Sample size (N) | 2143 | 6915 | 8243 | 8296 | 1081 | 1206 |
| Male; n (%) | 1067 (49.79) | 3367 (48.69) | 4128 (50.08) | 3923 (47.29) | 466 (43.11) | 595 (49.34) |
| Mean (*sd) age (years) | 17 (1) | 17 (1) | 16 (1) | 17 (1) | 17 (1) | 17 (1) |
| Mean (*sd) Body Mass Index (BMI – kg/m2) | 21.45 (4.02) | 21.48 (4.47) | 21.65 (4.64) | 21.75 (5.58) | 22.40 (5.09) | 22.06(4.38) |
| Socioeconomic measures | ||||||
| Participants’ families’ wealth Index | ||||||
| Lower n (%) | 696 (32.48) | 882 (81.59) | 568 (47.10) | |||
| Medium n (%) | 643 (30.01) | 154 (14.25) | 265 (21.97) | |||
| Higher n (%) | 804 (37.52) | 45 (4.16) | 373 (30.93) | |||
| Father Employed (%) | 47.94 | 47.91 | 47.11 | |||
| Mother Employed (%) | 42.51 | 43.45 | 43.57 | |||
| Number of participants with both Parents employed / unemployed (%) | 24.76/29.99 | 27.65/26.90 | 32.95/27.27 | |||
| Number of participants receiving Monthly allowance by groups (n) | ||||||
| Lower | ||||||
|
2002: None – ZAR 20 2008 & 2011: None – ZAR 40 |
62.78 | 52.93 | 51.53 | |||
| Medium | ||||||
|
2002: ZAR 21 – 50 2008 & 2011: ZAR 41 – 70 |
19.37 | 20.76 | 18.77 | |||
| Upper | ||||||
|
2002: > ZAR 50 2008 & 2011: > ZAR 70 |
17.85 | 26.32 | 29.69 | |||
SADHS South Africa Demographic and Health Surveys, YRBS National Youth Risk Behavior Surveys, SANHANES South Africa National Health and Nutrition Examination Survey, BMI Body Mass Index, sd standard deviation