Table 1 : Gender (numbers of men and women), age and years of education
(mean±SEM) for each genotype of 5HTTLPR polymorphism within two
investigated samples.
| L/L | L/S | S/S | Statistics | |
| University sample of subjects included in 5HTTLPR Genotype and IQ association study |
||||
| Men (n) | 26 | 45 | 18 | χ2=0.06, p=0.49a |
| Age | 47.1±4.1 | 40.5±3.1 | 35.0±4.9 | χ2=4.5, p=0.053 |
| Years of education | 15.3±0.4 | 14.9±0.3 | 14.8±0.5 | χ2=0.6, p=0.37 |
| Women (n) | 39 | 56 | 24 | χ2=0.1, p=0.48a |
| Age | 39.6±3.4 | 33.2±2.8 | 39.8±4.3 | χ2=1.9, p=0.195 |
| Years of education | 14.6±0.3 | 14.3±0.3 | 14.8±0.4 | χ2=0.5, p=0.39 |
| Control sample of villagers from Dovolnoe village of Novosibirsk region | ||||
| Men (n) | 19 | 17 | 3 | χ2=0.09, p=0.43a |
| Age | 43.4±4.5 | 52.8±4.74 | 59.7±11.3 | χ2=4.4, p=0.055 |
| Years of education | 11.8±0.8 | 10.3±0.7 | 10.0±1.7 | χ2=3.7, p=0.08 |
| Women (n) | 25 | 15 | 4 | χ2=0.6, p=0.37a |
| Age | 44.2±34.9 | 53.9±5.1 | 52.2±9.8 | χ2=1.0, p=0.30 |
| Years of education | 10.9±0.6 | 12.1±0.9 | 11.0±1.5 | χ2=4.4, p=0.055 |
aHardy-Weinberg test