Table 3.

Mediation by pregnancy-onset snoring of the association between maternal weight and HDP

	OR (95% CI)
Mediator	Total association	Direct association	Indirect association through mediator	Percentage of association mediated %
Pregnancy snoring
Unadjusted	2.07 (1.47, 2.89)	1.93 (1.37, 2.72)	1.07 (1.00, 1.15)	13
Adjusteda	2.03 (1.41, 2.91)	1.87 (1.30, 2.70)	1.08 (1.01, 1.17)	15

Abbreviations: BMI = body mass index; CI = confidence interval; HDP = hypertensive disorders of pregnancy; OR = odds ratio.

^aAdjusted for maternal age, race, education, parity, smoking, and history of hypertension.