Table 1.

Regression analysis to predict frequency of intimate relations

	Simple linear regression			Multivariable stepwise linear regression
B	95% CI	p	B	95% CI	p
Age (Years)	0.007	0.004,0.010	<0.001	0.010	0.007,0.013	<0.001
Gender (Female)	0.215	0.146,0.284	<0.001	0.150	0.071,0.229	<0.001
BASDAI	0.124	0.107,0.141	<0.001	0.029	0.007,0.050	0.010
Spinal Stiffness	0.089	0.075,0.102	<0.001	NA	NA	0.214
Functional Limitation – Intimate relations	0.297	0.271,0.323	<0.001	0.218	0.185,0.251	<0.001
GHQ-12	0.067	0.059,0.075	<0.001	0.035	0.024,0.045	<0.001
Depression (Yes)	0.375	0.298,0.452	<0.001	NA	NA	0.064
Relationship with spouse	0.343	0.306,0.380	<0.001	0.207	0.165,0.250	<0.001
BMI	0.017	0.011,0.024	<0.001	0.008	0.001,0.015	0.031
Smoking (Yes)	0.075	0.002,0.148	0.044	NA	NA	0.907
Physical activity (Yes)	-0.212	-0.306,-0.119	<0.001	-0.135	-0.234,-0.036	0.007
Biologics (Yes)	0.188	0.110, 0.267	<0.001	NA	NA	0.185