Table 4.

Variation of adjusted associations between cardiovascular risk factors by sex for apnea–hypopnea index

	Female (n = 710)		Male (n = 626)		P for Interaction
	β-Value	95% CI	β-Value	95% CI
Monocyte count, ×103/μl	0.469	0.030, 0.907	0.070	−0.191, 0.331	0.064
Diastolic BP, mm Hg	0.004	−0.003, 0.011	0.011	0.003, 0.019	0.084
Triglycerides, mg/dl	−3.940 × 10−4	−0.002, 0.001	0.002	3.250 × 10−4, 0.003	0.006

Definition of abbreviations: BP = blood pressure; CI = confidence interval.

Models are shown when there was evidence of a suggestive (P < 0.10) or significant (P < 0.05) interaction with the risk factor and sex category. Each row represents a unique regression model adjusted for age, race/ethnicity, smoking, statin use, any antihypertensive medication, antidiabetes medication (insulin and/or hypoglycemic), body mass index, and waist circumference for each stratified analysis. P value for interaction was calculated for the full model, including an interaction term for an interaction term for sex and the exposures (monocytes, diastolic BP, triglycerides). P values in bold typeface highlight the statistical significance. Analyses are based on n = 1,336 (without missing data). Values are natural logarithm transformations.