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Table 3 Stepwise linear regression analysis predicting the PTSD symptom severity by FGM (dummy coded with FGM I at baseline; step 1), FGM and the number of lifetime traumatic events (step 2) and the latter variables and their interaction term

From: Psychopathological sequelae of female genital mutilation and their neuroendocrinological associations

 

beta (SE)

β

t

Step 1 (F(2,162) = 7.3, p < .001, adjusted R2 = .07, f2 = .09)

 (Intercept)

0.83 (1.34)

.09

0.42

 FGM: type II/III vs. I

4.83 (1.34)

.54

3.60***

 FGM: noFGM vs. type I

0.33 (2.15)

.03

0.15

Step 2 (F(3,161) = 32.2, p < .001, adjusted R2 = .36, f2 = .60)

 (Intercept)

−2.78 (0.96)

−.32

−3.00**

 FGM: type II/III vs. I

3.58 (1.12)

.40

3.19**

 FGM: noFGM vs. type I

1.81 (1.79)

.20

1.01

 LTE

2.68 (0.31)

.69

8.68***

Step 3 (F(5,159) = 26.5, p < .001, adjusted R2 = .44, f2 = .83)

 (Intercept)

0.18 (1.12)

.02

0.16

 FGM: type II/III vs. I

−1.21 (1.45)

−.13

−0.83

 FGM: noFGM vs. type I

−0.50 (2.12)

−.05

−0.23

 LTE

0.47 (0.56)

.12

0.85

 Interaction: FGM type II/III vs. I and LTE

3.15 (0.66)

.81

4.76***

 Interaction: FGM: noFGM vs. type I and LTE

1.30 (1.38)

.34

0.95

  1. Unstandardized beta coefficients (beta) with standard error (SE), uncorrected standardized regression coefficients (β), and t-values (t) with *p ≤ .05, **p ≤ .01 and ***p ≤ .001 are reported
  2. FGM female genital mutilation, LTE lifetime traumatic events