Table 2.
Frequencies of homozygous recessive characteristics in the groups of FS patients and control.
| Homozygous recessive trait | CN | FS | CN/FS | SFS | CFS | SFS/CFS | WFS | EFS | WFS/EFS |
|---|---|---|---|---|---|---|---|---|---|
| N=121 | N=121 | X2 | N=80 | N=41 | X2 | N=99 | N=22 | X2 | |
| 1. Blond hair | 7.4 | 14 | 7.11∗∗ | 12.5 | 17.07 | 1.46 | 13.1 | 18.18 | 1.69 |
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| 2. Straight hair | 30.6 | 43.8 | 6.92∗∗ | 43.75 | 48.78 | 0.55 | 40.4 | 59.1 | 7.28∗∗ |
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| 3. Double hair whorl | 9.9 | 13.2 | 1.33 | 10 | 19.51 | 6.83∗∗ | 13.1 | 13.63 | 0.02 |
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| 4. Opposite hair whorl orientation | 6.6 | 7.4 | 0.12 | 7.5 | 7.32 | 0.004 | 9.09 | 0 | 0 |
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| 5. Soft hair | 15.7 | 29.7 | 6.08∗ | 27.5 | 34.15 | 1.45 | 32.32 | 18.18 | 8.59∗∗ |
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| 6. Continuous hairline | 26.4 | 27.3 | 0.03 | 23.75 | 34.15 | 3.86∗ | 23.23 | 45.45 | 9.72∗∗ |
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| 7. Attached ear lobe | 7.4 | 12.4 | 4∗ | 11.25 | 14.63 | 0.89 | 12.12 | 13.63 | 0.18 |
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| 8. Ear without Darwinian knot | 7.4 | 14.9 | 9∗∗ | 13.75 | 17.07 | 0.74 | 14.14 | 18.18 | 1.02 |
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| 9. Blue eyes | 24.8 | 19 | 1.63 | 20 | 17.07 | 0.44 | 19.19 | 18.18 | 0.05 |
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| 10. Color blindness | 0.8 | 1.6 | 1 | 2.5 | 0 | 0 | 1.01 | 4.54 | 7.53∗∗ |
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| 11. Speaking deficiency (guttural “r”) | 17.3 | 20.7 | 0.76 | 17.5 | 24.39 | 2.33 | 18.18 | 31.81 | 8.03∗∗ |
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| 12. Inability to curve the tongue | 8.3 | 18.2 | 14.4∗∗∗ | 12.5 | 31.71 | 20.56∗∗∗ | 14.14 | 36.36 | 24.24∗∗∗ |
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| 13. Inability to roll the tongue | 14 | 35.5 | 20.22∗∗∗ | 36.25 | 34.15 | 1.12 | 38.38 | 22.72 | 8.59∗∗ |
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| 14. Right thumb over left thumb | 39.7 | 33.9 | 1.02 | 36.25 | 29.27 | 1.5 | 34.34 | 31.81 | 0.19 |
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| 15. Top joint of the thumb >45° | 13.2 | 17.3 | 1.56 | 16.25 | 19.51 | 0.59 | 18.18 | 13.63 | 1.33 |
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| 16. Proximal thumb extensibility | 21.5 | 33.9 | 8.65∗∗ | 32.5 | 36.58 | 0.48 | 32.32 | 40.9 | 2.04 |
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| 17. Thumb backward movability | 19.8 | 24 | 1.04 | 21.25 | 31.71 | 4.29∗ | 22.22 | 31.81 | 3.51 |
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| 18. 3 strings in the wrist | 24 | 35.5 | 15.04∗∗∗ | 41.25 | 24.39 | 4.95∗ | 37.37 | 27.27 | 3.23 |
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| 19. Left-handedness | 19.8 | 12.4 | 4.17∗ | 10 | 19.51 | 6.83∗∗ | 13.1 | 9.1 | 2.3 |
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| 20. Index finger longer than the ring finger (in males; opposite in females) | 26.4 | 37.2 | 5.28∗ | 43.75 | 24.39 | 8.74∗∗ | 36.36 | 40.9 | 0.53 |
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| ∑X 2 | 109.02 ∗∗∗ | 66.7 ∗∗∗ | 89.88 ∗∗∗ | ||||||
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| ∗p<0.05 ∗∗p<0.01∗∗∗p<0.001 | |||||||||
CN: control group; FS: febrile seizure; SFS: simple febrile seizures; CFS: complex febrile seizures; WFS: febrile seizures without epilepsia; EFS: epilepsia.
Significant differences in frequencies of studied homozygous recessive characters.
CN/FS Nos. 1, 2, 5, 7, 8, 12, 13, 16, 18, 19, and 20.
SFS/CFS Nos. 3, 6, 12, 17, 18, 19, and 20.
EFS/WFS Nos. 2, 5, 6, 10, 11, 12, and 13.