Table 4.

Hierarchical linear regression Models 1–5 predicting sexual function (IIEF) with PMB and STIG-9

Predictor	Regression 1		Regression 2		Regression 3		Regression 4 (expl.)		Regression 5 (sens.)
	β (adj.)	95%-CI	β (adj.)	95%-CI	β (adj.)	95%-CI	β (adj.)	95%-CI	β (adj.)	95%-CI
PMB	− 0.13*	[− 0.22, − 0.03]**	− 0.12	[− 0.21, − 0.02]*	− 0.11	[− 0.21, − 0.01]*	− 0.08	[− 0.17, 0.02]	− 0.06	[− 0.13, 0.00]
STIG-9	− 0.07	[− 0.16, 0.02]	− 0.09	[− 0.18, 0.00]*	− 0.09	[− 0.18, 0.00]	− 0.08	[− 0.17, 0.01]	− 0.03	[− 0.10, 0.03]
Age			− 0.19***	[− 0.29, − 0.10]***	− 0.20***	[− 0.29, − 0.11]***	− 0.21***	[− 0.30, − 0.12]***	− 0.14***	[− 0.21, − 0.08]***
Income			0.02	[− 0.07, 0.11]	0.02	[− 0.07, 0.11]	0.03	[− 0.06, 0.11]	− 0.02	[− 0.08, 0.04]
Education			0.32**	[0.13, 0.50]***	0.32**	[0.14, 0.51]***	0.26*	[0.08, 0.45]**	0.18*	[0.05, 0.30]**
non-heterosexual			− 0.05	[− 0.27, 0.16]	− 0.06	[− 0.27, 0.16]	− 0.13	[− 0.34, 0.08]	− 0.08	[− 0.23, 0.06]
MC-SDS			− 0.02	[− 0.11, 0.07]	− 0.03	[− 0.13, 0.06]	0.00	[− 0.09, 0.09]	− 0.05	[− 0.11, 0.02]
CMNI-30					− 0.04	[− 0.14, 0.07]			− 0.04	[− 0.11, 0.03]
Emotional control							− 0.16**	[− 0.25, − 0.07]***
Playboy							0.14*	[0.05, 0.23]**
Work							− 0.08	[− 0.16, 0.01]
Self-reliance							− 0.03	[− 0.13, 0.06]
Relationship									0.40***	[0.25, 0.54]***
General health									0.14***	[0.08, 0.20]***
Psych. diagnosis									− 0.13	[− 0.26, 0.00]
Freq. intercourse									0.55***	[0.48, 0.62]***
Model fit
F (df1, df2)	6.46 (2, 483)		5.39 (7, 478)		4.78 (8, 477)		6.23 (11, 474)		57.08 (12, 473)
BIC	4228.9		4235.7		4241.4		4231.7		3868.5
ΔR2 in %	2.20**		3.76***		0.00		4.64***		52.25***

Bold values indicate statistical significance on an alpha-level of 5%

All calculations were performed with the reduced sample (n = 486);

expl., post-hoc exploratory analyses; sens., post-hoc sensitivity analyses; β ^(adj.), standardized regression coefficient with significance level adjusted (adj.) for multiple testing using the holm method; 95%-CI, two-sided 95% confidence interval with unadjusted significance level; df, degrees of freedom; ΔR², change in adjusted R² for nested consecutive (R²₁; R²₂—R²₁; R²₃—R²₂; R²₄—R²₂; R²₅—R²₃) models; IIEF, International Index of Erectile Function; PMB, Precarious Manhood Beliefs scale; STIG-9, Stigma-9 questionnaire; MC-SDS, Marlowe-Crowne Social Desirability Scale; CMNI-30, Conformity to Masculine Norms Inventory – 30; Psych., psychiatric; Freq., frequency

*p < .05; **p < .01; ***p < .001