Table 2 Genotypic frequencies and logistic regression analyses for NGF rs6330 and BDNF rs6265 by treatment response (additive model coded as: −1, 0, 1)

From: Neurotrophic gene polymorphisms and response to psychological therapy

Time

Model

A1/A1

A1/A2

A2/A2

Additive

  

N (%)

N (%)

N (%)

OR (95% CI)

P

NGF rs6330

 Post-treatment

Primary anxiety responders

46 (47.9)

87 (54.7)

40 (53.3)

0.88 (0.66–1.20)

0.443

 

All anxiety responders

34 (35.1)

63 (39.6)

28 (37.3)

0.94 (0.69–1.28)

0.714

 Follow-up

Primary anxiety responders

42 (53.2)

87 (63.5)

46 (76.7)

0.60 (0.42–0.85)

0.005

 

All anxiety responders

32 (40.5)

62 (45.3)

34 (56.7)

0.73 (0.52–1.02)

0.067

BDNF rs6265

 Post-treatment

Primary anxiety responders

113 (50.2)

54 (54.5)

4 (44.4)

0.92 (0.61–1.38)

0.694

 

All anxiety responders

87 (38.5)

33 (33.0)

3 (33.3)

1.22 (0.79–1.88)

0.361

 Follow-up

Primary anxiety responders

122 (64.2)

48 (61.5)

3 (42.9)

1.24 (0.78–1.98)

0.358

 

All anxiety responders

85 (44.7)

38 (48.7)

3 (42.9)

0.91 (0.58–1.43)

0.670

  1. Abbreviations: BDNF, brain-derived neutrotrophic factor; NGF, nerve growth factor. Bold values indicate P<0.05.