Table 5.

Sequential regressions predicting percent change in VPA while watching a sexual film from inflammation, sexual frequency, and relevant covariates.

Step	F	adjusted R2	Predictor	β	t	p
1	2.456	0.065	Age	0.076	0.486	0.630
			BMI	0.299	1.906	0.064
2	5.731	0.360	Age	−0.221	−1.494	0.144
			BMI	0.381*	2.220	0.033
			Salivary CRP	0.883*	2.717	0.010
			Sexual frequency	1.423**	3.786	0.001
			CRP x frequency	−1.969**	−4.204	< 0.001
The same sequential regressions including cortisol and time since waking.
Step	F	adjusted R2	Predictor	β	t	p
1	0.972	−0.004	Age	0.029	0.141	0.889
			BMI	0.331	1.545	0.136
			Salivary cortisol	−0.007	−0.032	0.975
			Time since waking	0.192	0.957	0.349
2	0.884	−0.026	Age	−0.080	−0.349	0.731
			BMI	0.559	1.956	0.064
			Salivary cortisol	−0.064	−0.301	0.766
			Time since waking	0.172	0.841	0.410
			Salivary CRP	−0.316	−1.217	0.237
			Sexual frequency	−0.048	−0.243	0.811
			CRP x frequency	—	—	—

* significant at p < 0.05, ** significant at p < 0.01.