Table 2.
Feature characteristics of diabetes in Pima Indians' dataset.
| Feature name | Mean ± SD | Diabetes (N = 268) | Nondiabetes (N = 500) | P value |
|---|---|---|---|---|
| Age (years) | 33.24 ± 11.8 | |||
| (<25) | 31 (11.8%) | 188 (38.0%) | <0.05 | |
| (25–30) | 53 (20.0%) | 124 (25.2%) | ||
| (30–35) | 42 (15.5%) | 50 (9.6%) | ||
| (35–40) | 34 (12.9%) | 39 (8.3%) | ||
| (>40) | 108 (40.0%) | 99 (19.9%) | ||
|
| ||||
| No. of pregnancies | 3.8 ± 3.4 | |||
| Never | 38 (14.0%) | 73 (14.0%) | <0.05 | |
| (1–3) | 75 (28.2%) | 238 (45.6%) | ||
| (4–6) | 60 (22.0%) | 115 (25.7%) | ||
| (>6) | 95 (35.8%) | 74 (14.7%) | ||
|
| ||||
| Insulin level (u U/ml) | 79.8 ± 15.2 | |||
| (Less than 200) | 221 (83.0%) | 458 (92.0%) | <0.05 | |
| (More than 200) | 47 (18.0%) | 42 (8.0%) | ||
|
| ||||
| BMI (kg/m^2) | 31.9 ± 7.9 | |||
| Normal | 7 (3.0%) | 108 (22.0%) | <0.05 | |
| Overweight | 122 (46.0%) | 239 (46.9%) | ||
| Obesity | 139 (52.0%) | 153 (31.1%) | ||
|
| ||||
| Blood pressure (mm·Hg) | 69 ± 19.4 | |||
| Low (<65) | 46 (18.0%) | 155 (31.4%) | <0.05 | |
| Normal (65–85) | 173 (64.6%) | 288 (57.2%) | ||
| High (>85) | 49 (17.4%) | 57 (11.4%) | ||
|
| ||||
| Glucose (mg/dL) | 120.9 ± 32 | |||
| Normal (<140) | 131 (49.9%) | 438 (88.6%) | <0.05 | |
| High (>140) | 137 (50.1%) | 62 (11.4%) | ||
|
| ||||
| Skin fold (mm) | 20.5 ± 16 | |||
| (<20) | 103 (38.6%) | 235 (47.4%) | <0.05 | |
| (20–40) | 123 (45.9%) | 217 (43.0%) | ||
| (>40) | 42 (15.5%) | 48 (9.6%) | ||
|
| ||||
| Pedigree function | 0.47 ± 0.3 | |||
| (<0.5) | 163 (60.8%) | 319 (63.8%) | <0.05 | |
| (0.5–1.0) | 87 (32.5%) | 145 (29.0%) | ||
| (>1.0) | 18 (6.7%) | 36 (7.2%) | ||