Table 5.

Study results from measures of social relations, effect size and findings.

Reference/outcome measure	Effect size (Cohen’s d)	Main findings
Ferlin et al. (31)		There was significant difference between KS and controls in sexual desire, intercourse satisfaction, overall satisfaction (P < 0.05). Erectile dysfunction (P < 0.0005).
IIEF - 15
Erectile dysfunction	0.385
Overall satisfaction	0.675
Fisher et al. (32)		KS group showed higher risk of developing hypersexuality and voyeuristic fantasies.
SAST	−0.561
IIEF
Overall function	0.706
Overall satisfaction	0.375
Van Rijn (35)		The 47, XXY group lower levels of salivary testosterone were significantly associated with higher levels of social anxiety. Salivary levels of testosterone were uncorrelated to social cognitive skills.
SAS	–
SCST	–
KDEF	–
Van Rijn et al. (7)		The effect size between healthy controls and KS participants was large in all categories measured, there were significant differences (P < 0.05) SRS, SAS.
SAS	0.793
SRS	2.016
SSRS	−1.369
Skakkebaek et al. (33)		P value <0.001 in orgasmic function, erectile function 0.003, total sexual function 0.008. Intercourse satisfaction 0.006. Parenthood was significantly lower than controls P < 0.001.
IIEF
Overall function	–
Overall satisfaction	–
Van Rijn et al. (26)		Overall distress during social interactions was significantly higher in the XXY group as compared to men from the general population. Mean score in the XXY group was 2.2 (s.d. 0.67) and in the control group 1.6 (s.d. 0.49), which was significantly different (F (1,52) = 13.2, P = 0.001).
Social behaviour	–
Overall social distress	1.002

IIEF, International Index of Erectile function (75); SAS, Social anxiety scale (78); SRS, The Social Responsiveness Scale (80); SAST, Short Anxiety Screening test (76); SCST, Social cognitive skills test (77); SRSS, Social skills rating scale (79).