Table 1.

Sociodemographic characteristics and frequency of studied single nucleotide polymorphisms genotypes

	Total	Overweight/obese	Control	P value
Total	163	73	90
Mean age±SD, years	41.47±13.07	45.39±12.08	38.33±13.05	0.005*
Sex, number (%)
Female	94 (58.0%)	48 (51.0%)	46 (49.0%)	0.046*
Male	68 (42.0%)	24 (35.0%)	44 (65.0%)
BMI, kg/m2	31.81±2.97	20.70±2.40	0.000*
Ethnicity, number (%)
Kazakh	93 (57.0%)	33 (35.5%)	60 (64.5%)	0.008*
Russian	69 (43.0%)	39 (56.5%)	30 (43.5%)
Smoking, number (%)
No	117 (72.2%)	58 (49.6%)	59 (50.4%)	0.034*
Yes	45 (27.8%)	14 (31.1%)	31 (68.9%)

Age and BMI are presented with mean±SD. Rest of the variables are given with number and percentage (%). Age and BMI p values were obtained from Student’s t-test with unequal variances. Other variables p values were acquired from the χ² test.

*Statistically significant p values (<0.05).

BMI, body mass index.