Table 3.
Potential risk features ranked by weights obtained using support vector machine (SVM) feature selection [20], Blue Mountains Eye Study 10-year follow-up data.
| Rank | Attribute | SVM weight |
|---|---|---|
| 1 | Age (per 1 year) | 3.21660913 |
| 2 | Body mass index (per 1 kg/m2) | 0.15610062 |
| 3 | Current smoker (past/never smoked) | 0.06839195 |
| 4 | Gender (male/female) | 0.05784681 |
| 5 | Total cholesterol (per 1 mmol/L) | 0.04203396 |
| 6 | Systolic blood pressure (per 1 mmHg) | 0.01872727 |
| 7 | High-density lipoprotein cholesterol (per 1 mmol/L) | 0.01231242 |
| 8 | Diabetes (versus no diabetes) | 0.00610169 |
| 9 | Medication for hypertension (versus no medication for hypertension) | 0.00104436 |
| 10 | Retinopathy (yes/no) | 0.00064500 |
| 11 | Diastolic blood pressure (per 1 mmHg) | 0.00023068 |