Joint effect of 25-hydroxyvitamin D and secondhand smoke exposure on hypertension in non-smoking women of childbearing age: NHANES 2007-2014

Table 2 Interaction analysis of SHS and 25(OH)D on the risk of hypertension

Interaction	n (%)	Crude OR, 95% CI	P	Model 1 OR, 95% CI	P	Model 2 OR, 95% CI	P
Deficiency*SHS	128(26.4)	1.79(1.30, 2.46)**	0.000	2.01(1.35, 2.97)**	0.001	1.79(1.14, 2.80)**	0.011
Insufficiency*SHS	53(17.3)	1.04(0.71, 1.53)	0.840	1.17(0.76, 1.81)	0.474	1.04(0.64, 1.70)	0.863
Sufficiency*SHS	38(19.8)	1.23(0.80, 1.90)	0.347	1.25(0.77, 2.04)	0.373	1.19(0.68, 2.07)	0.538
Deficiency*non-SHS	142(19.9)	1.24(0.91, 1.69)	0.170	1.57(1.09, 2.26)**	0.015	1.35(0.89, 2.03)	0.159
Insufficiency*non-SHS	123(18.2)	1.11(0.81, 1.53)	0.504	1.39(0.98, 1.97)	0.065	1.29(0.88, 1.91)	0.197
Sufficiency*non-SHS	76(16.7)	Ref.	–	Ref.	–	Ref.	–

Model 1: age, race, education level, marital status, PIR
Model 2: model 1 + BMI, alcohol use, physical activity, diabetes, kidney disease
SHS: Secondhand smoke; ** : significant at p <0.05
n (%): numbers and prevalence rates of hypertension of each layer

ISSN: 1476-069X