Table 4.
Study Variables by 5HTTLPR Genotype
| Variable | 5 HTTLPR genotype
|
Test statistic | |||||
|---|---|---|---|---|---|---|---|
| s/s
|
s/l
|
l/l
|
|||||
| N | M (SD) or % | N | M (SD) or % | N | M (SD) or % | ||
| Age | 21 | 39.05 (6.44) | 30 | 39.50 (7.40) | 35 | 37.77 (7.05) | F(2, 83) = 0.52 |
| No. of -trauma events | 21 | 3.48(1.72) | 30 | 3.11(1.15) | 35 | 3.14(4.38) | F(2, 83) = 0.43 |
| AAI coherence of transcript | 21 | 4.92(1.65) | 30 | 4.25 (1–78) | 35 | 5.10(1.55) | F(2, 83) = 2.42 |
| Sex | χ2(2) = 0.54 | ||||||
| Male | 10 | 48 | 12 | 40 | 17 | 49 | |
| Female | 11 | 52 | 18 | 60 | 18 | 51 | |
| Biological parent diagnosis | χ2(2) = 2.11 | ||||||
| Control | 11 | 52 | 16 | 53 | 24 | 69 | |
| Proband | 10 | 48 | 14 | 47 | 11 | 31 | |
| Age at adoption | χ2(6) = 5.95 | ||||||
| Less than 1 month | 12 | 60 | 20 | 67 | 27 | 81 | |
| 1 to 3 months | 3 | 15 | 6 | 19 | 1 | 3 | |
| 3 to 6 months | 3 | 15 | 2 | ~7 | 3 | 8 | |
| Greater than 6 months | 2 | 10 | 2 | ~7 | 3 | 8 | |
| SNAP | |||||||
| Negative Temperament | 20 | 45.24 (12.54) | 28 | 44.31 (11.44) | 34 | 43.65 (11.56) | K-W: χ2(2) = 0.27 |
| Positive Temperament | 20 | 49.25 (10.48) | 28 | 46.76 (11.80) | 34 | 48.00 (10.03) | K-W: χ2(2) = 0.59 |
| Disinhibited Temperament | 20 | 45.57 (10.71) | 28 | 41.79(7.72) | 34 | 41.26 (7.67) | K-W: χ2(2) = 3.02 |
| BSI | |||||||
| Interpersonal sensitivity | 20 | 50.65 (11.09) | 28 | 51.96 (10.18) | 33 | 49.52 (9.88) | K-W: χ2(2) = 0.57 |
| Depression | 20 | 55.25 (11.35) | 28 | 52.64 (9.75) | 33 | 51.67 (10.06) | K-W: χ2(2) = 1.25 |
| Anxiety | 20 | 51.90 (11.76) | 28 | 47.89 (10.01) | 33 | 48.21 (10.28) | K-W: χ2(2) = 1.58 |
| Hostility | 20 | 52.35 (10.05) | 28 | 50.18 (9.89) | 33 | 51.58(10.43) | K-W: χ2;(2) = 0.67 |
Note. Biological parent diagnosis includes alcohol problems and/or antisocial behaviors. AAI = Adult Attachment Interview: SNAP = Schedule for Nonadaptive and Adaptive Personality: K-W = Kruskal-Wallis test: BSI = Brief Symptom Instrument.