Table 2.
Frequencies of homozygously-recessive characteristics among patients with CAD and individuals of the control sample.
| Homozygously Recessive Characteristics | Control Sample N = 156, n (%) |
CAD Patients N = 148, n (%) |
χ 2 | OR (95% CI) |
|---|---|---|---|---|
| Blond Hair | 45 (28.8) | 36 (24.3) | 0.703 | 0.79 (0.48–1.32) |
| Straight Hair | 92 (59.0) | 74 (50.0) | 1.373 | 0.70 (0.44–1.09) |
| Double Hair Whorl | 15 (9.6) | 5 (3.4) | 4.004 * | 0.33 * (0.12–0.93) |
| Opposite Hair Whorl Orientation | 21 (13.5) | 29 (19.6) | 2.756 | 1.57 (0.85–2.89) |
| Soft Hair | 57 (36.5) | 43 (29.1) | 1.500 | 0.71 (0.44–1.15) |
| Attached Ear Lobe | 18 (11.5) | 12 (8.1) | 1.005 | 0.68 (0.31–1.46) |
| Ear Without Darwinian notch | 5 (3.2) | 19 (12.8) | 28.800 ** | 4.45 ** (1.62–12.25) |
| Blue Eyes | 32 (20.5) | 67 (45.3) | 30.002 ** | 3.21 ** (1.93–5.32) |
| Speaking deficiency-gutorral “r” | 3 (1.9) | 9 (6.1) | 9.284 ** | 3.30 (0.88–12.44) |
| Inability to Transversally Tongue Roll | 40 (25.6) | 76 (51.4) | 26.002 ** | 3.06 ** (1.89–4.96) |
| Inability to Longitudinally Tongue Roll | 20 (12.8) | 48 (32.4) | 30.013 ** | 3.26 ** (1.82–5.84) |
| Right Thumb over Left Thumb | 84 (53.8) | 82 (55.4) | 0.048 | 1.06 (0.68–1.67) |
| Top Joint of the Thumb >45° | 35 (22.4) | 14 (9.5) | 7.429 ** | 0.36 ** (0.19–0.70) |
| Hypermobility of proximal thumb joint | 9 (5.8) | 12 (8.1) | 0.912 | 1.44 (0.59–3.53) |
| Proximal thumb extensibility | 28 (17.9) | 54 (36.5) | 19.327 ** | 2.63 ** (1.55–4.45) |
| Left-handedness | 17 (10.9) | 9 (6.1) | 2.114 | 0.53 (0.23–1.23) |
| Index finger longer than the ring finger | 64 (41.0) | 42 (28.4) | 3.872 * | 0.57 * (0.35–0.92) |
| ∑χ2 = 169.144 ** | ||||
CAD: Coronary artery disease; * p < 0.05; ** p < 0.01.