Skip to main content
. 2015 Oct 28;5(10):e009426. doi: 10.1136/bmjopen-2015-009426

Table 3.

The study group of 470 women compared to the reference group of 156 age-matched women

Cronbach's α IVF women
n=463–470
Reference group age-matched sample
n=156
Effect size
Cohen's distance
p Value
Mean SD Mean SD
Somatisation 0.856 0.62 0.72 0.43 0.44 0.32* <0.001
Obsessive-compulsive 0.864 0.57 0.68 0.49 0.52 0.13 0.020
Interpersonal sensitivity 0.884 0.41 0.68 0.42 0.47 0.02 0.763
Depression 0.921 0.62 0.80 0.52 0.58 0.14 0.017
Anxiety 0.870 0.49 0.70 0.43 0.48 0.10 0.079
Hostility 0.778 0.32 0.57 0.29 0.41 0.06 0.285
Phobic anxiety 0.746 0.13 0.41 0.11 0.26 0.06 0.303
Paranoid ideation 0.746 0.30 0.57 0.27 0.39 0.06 0.278
Psychoticism 0.762 0.15 0.41 0.14 0.24 0.03 0.599
Global Severity Index 0.975 0.41 0.60 0.38 0.38 0.06 0.291
Positive Symptom Distress Index 3.84 6.15 1.40 0.43 0.56† <0.001
Positive symptom total 25.63 18.63 24.58 16.86 0.06 0.296

Significance level <0.05.

*Effect size Cohen's distance: ≥0.2 small.

†Effect size Cohen's distance: ≥0.5=medium.

‡Effect size Cohen's distance: ≥0.8=large.

IVF, in vitro fertilisation.