Anthropogenetic Variability in the Group of Individuals with Febrile Seizures: Population-Genetic Study

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	X^2	N=80	N=41	X^2	N=99	N=22	X^2
1. Blond hair	7.4	14	7.11	12.5	17.07	1.46	13.1	18.18	1.69
2. Straight hair	30.6	43.8	6.92	43.75	48.78	0.55	40.4	59.1	7.28
3. Double hair whorl	9.9	13.2	1.33	10	19.51	6.83	13.1	13.63	0.02
4. Opposite hair whorl orientation	6.6	7.4	0.12	7.5	7.32	0.004	9.09	0	0
5. Soft hair	15.7	29.7	6.08	27.5	34.15	1.45	32.32	18.18	8.59
6. Continuous hairline	26.4	27.3	0.03	23.75	34.15	3.86	23.23	45.45	9.72
7. Attached ear lobe	7.4	12.4	4	11.25	14.63	0.89	12.12	13.63	0.18
8. Ear without Darwinian knot	7.4	14.9	9	13.75	17.07	0.74	14.14	18.18	1.02
9. Blue eyes	24.8	19	1.63	20	17.07	0.44	19.19	18.18	0.05
10. Color blindness	0.8	1.6	1	2.5	0	0	1.01	4.54	7.53
11. Speaking deficiency (guttural “r”)	17.3	20.7	0.76	17.5	24.39	2.33	18.18	31.81	8.03
12. Inability to curve the tongue	8.3	18.2	14.4	12.5	31.71	20.56	14.14	36.36	24.24
13. Inability to roll the tongue	14	35.5	20.22	36.25	34.15	1.12	38.38	22.72	8.59
14. Right thumb over left thumb	39.7	33.9	1.02	36.25	29.27	1.5	34.34	31.81	0.19
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
16. Proximal thumb extensibility	21.5	33.9	8.65	32.5	36.58	0.48	32.32	40.9	2.04
17. Thumb backward movability	19.8	24	1.04	21.25	31.71	4.29	22.22	31.81	3.51
18. 3 strings in the wrist	24	35.5	15.04	41.25	24.39	4.95	37.37	27.27	3.23
19. Left-handedness	19.8	12.4	4.17	10	19.51	6.83	13.1	9.1	2.3
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
∑X^2			109.02			66.7			89.88
p<0.05 p<0.01p<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.