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. 2021 Nov 20;12(11):1834. doi: 10.3390/genes12111834

Table 6.

Differences in DRD4 exon 3 (DRD4 Ex3), the NEO Five Factor Inventory, the STAI scale between healthy controls and PUD subjects.

STAI/NEO Five Factor Inventory DRD4 Ex3 ANOVA
PUD
(n = 206)
Control
(n = 301)
s/s
(n = 304)
s/l
(n = 169)
l/l
(n = 34)
Factor F (p-Value) ɳ2 Power (Alfa = 0.5)
STAI trait/scale 6.87 ± 2.25 5.16 ± 2.17 5.83 ± 2.49 6.00 ± 2.16 5.29 ± 2.14 intercept F1,501 = 1255.43 (p < 0.0001) * 0.716 1.000
PUD/control F1,501 = 15.92 (p < 0.0001) * 0.031 0.978
DRD4 Ex3 F2,501 = 0.98 (p = 0.375) 0.004 0.221
PUD/control x DRD4 Ex3 F2,501 = 1.52 (p = 0.219) 0.006 0.324
STAI state/scale 5.54 ± 2.43 4.68 ± 2.14 4.99 ± 2.30 5.21 ± 2.27 4.50 ± 2.40 intercept F1,501 = 849.36 (p < 0.0001) * 0.630 1.000
PUD/control F1,501 = 2.14 (p = 0.144) 0.004 0.309
DRD4 Ex3 F2,501 = 1.41 (p = 0.245) 0.006 0.303
PUD/control x DRD4 Ex3 F2,501 = 1.21 (p = 0.299) 0.005 0.264
Neuroticism/scale 6.45 ± 2.20 4.67 ± 2.01 5.46 ± 2.29 5.39 ± 2.16 4.67 ± 2.43 intercept F1,501 = 1196.67 (p < 0.0001) * 0.705 1.000
PUD/control F1,501 = 27.48 (p < 0.0001) * 0.052 0.999
DRD4 Ex3 F2,501 = 0.82 (p = 0.442) 0.003 0.190
PUD/control x DRD4 Ex3 F2,501 = 1.31 (p = 0.270) 0.005 0.284
Extraversion/scale 5.90 ± 2.01 6.37 ± 1.97 6.15 ± 1.98 6.11 ± 2.03 6.76 ± 2.05 intercept F1,501 = 1803.32 (p < 0.0001) * 0.782 1.000
PUD/control F1,501 = 0.73 (p = 0.391) 0.001 0.137
DRD4 Ex3 F2,501 = 1.45 (p = 0.234) 0.005 0.311
PUD/control x DRD4 Ex3 F2,501 = 0.34 (p = 0.713) 0.001 0.104
Openness/scale 4.80 ± 2.00 4.53 ± 1.61 4.51 ± 1.74 4.84 ± 1.82 4.85 ± 1.89 intercept F1,501 = 1335.71 (p < 0.0001) * 0.727 1.000
PUD/control F1,501 = 3.99 (p = 0.046) 0.008 0.514
DRD4 Ex3 F2,501 = 2.61 (p = 0.0740) 0.010 0.520
PUD/control x DRD4 Ex3 F2,501 = 0.99 (p = 0.372) 0.003 0.222
Agreeability/scale 4.41 ± 1.90 5.60 ± 2.09 5.09 ± 2.12 5.22 ± 2.00 4.82 ± 2.25 intercept F1,501 = 993.33 (p < 0.0001) * 0.665 1.000
PUD/control F1,501 = 33.04 (p < 0.0001) * 0.061 0.999
DRD4 Ex3 F2,501 = 2.95 (p = 0.053) 0.012 0.574
PUD/control x DRD4 Ex3 F2,501 = 2.30 (p = 0.101) 0.009 0.468
Conscientiousness/scale 5.85 ± 2.29 6.07 ± 2.15 5.93 ± 2.27 6.01 ± 2.14 6.26 ± 1.94 intercept F1,501 = 1357.97 (p < 0.0001) * 0.730 1.000
PUD/control F1,501 = 0.002 (p = 0.961) 0.00001 0.050
DRD4 Ex3 F2,501 = 0.53 (p = 0.587) 0.002 0.138
PUD/control x DRD4 Ex3 F2,501 = 0.31 (p = 0.729) 0.001 0.100

* Significant result.