| Variables | HTN n (%) | No HTN n (%) | p-value | 
|---|---|---|---|
| Age (years) | |||
| >35 | 179 (64.9) | 97 (35.1) | <0.001 | 
| ≤ 35 | 49 (38.6) | 78 (61.4) | |
| Marital Status | |||
| Ever Married | 140(63.6) | 80(36.4) | 0.002 | 
| Never Married | 88(48.1) | 95(51.9) | |
| Level of Education | |||
| No Formal School | 12(80.0) | 3(20) | 0.003 | 
| Grade 1-7 | 44(74.6) | 15(25.4) | |
| Grade 8-12 | 155(52.2) | 142(47.8) | |
| Tertiary | 17(53.1) | 15(46.9) | |
| Income | |||
| 2000 and below | 99(58.9) | 69(41.1) | 0.420 | 
| Above 2000 | 129(54.9) | 106(45.1) | |
| Race | |||
| Black | 212(56.4) | 164(43.6) | 0.771 | 
| Coloured | 16(59.3) | 11(40.7) | |
| Period of Driving | |||
| 5 Years and Below | 56(42.1) | 77(57.9) | <0.001 | 
| Above 5years | 172(63.7) | 98(36.3) | |
| Smoking | |||
| Yes | 115(57.8) | 84(42.2) | 0.627 | 
| No | 113(55.4) | 91(44.6) | |
| Obesity | |||
| Obese | 114(75.5) | 37(24.5) | <0.001 | 
| Not Obese | 114(45.2) | 138(54.8) | |
| Diabetes | |||
| Yes | 52 (82.5) | 11 (17.5) | <0.001 | 
| No | 176 (51.8) | 164 (48.2) | |
| Abdominal Obesity | |||
| Yes | 176 (71.0) | 72(29.0) | <0.001 | 
| No | 52(33.5) | 103(66.5) | |
| Have you Ever Consumed any Alcoholic Drink | |||
| Yes | 153(63.7) | 87(36.3) | <0.001 | 
| No | 75(46.0) | 88(54.0) | |
| How Often Do You Take Sweet Drinks | |||
| Never | 16(94.1) | 1(5.9) | 0.006 | 
| Rarely | 22(66.7) | 11(33.3) | |
| Sometimes | 46(55.4) | 37(44.6) | |
| Often | 144(53.3) | 126(46.7) | |