Association between frequency of dairy product consumption and hypertension: a cross-sectional study in Zhejiang Province, China

Table 2 Unadjusted and adjusted odds ratios for hypertension associated with frequency of dairy product consumption among adults in Zhejiang

Frequency of dairy product consumption	N. participants	Univariate	Multivariable
Frequency of dairy product consumption	N. participants	Univariate	Model 1	Model 2	Model 3
Total
Never	50,746	1.00	1.00	1.00	1.00
< 1 time/week	1757	0.69 (0.62–0.76)	0.83 (0.75–0.92)	0.84 (0.75–0.93)	0.85 (0.77–0.95)
Weekly	1413	0.59 (0.53–0.67)	0.70 (0.62–0.78)	0.71 (0.63–0.80)	0.74 (0.65–0.84)
P_trend		< 0.001	< 0.001	< 0.001	< 0.001
Men^a
Never	21,468	1.00	1.00	1.00	1.00
< 1 time/week	620	0.77 (0.65–0.90)	0.91 (0.77–1.08)	0.91 (0.77–1.08)	0.85 (0.71–1.02)
Weekly	485	0.71 (0.59–0.86)	0.78 (0.65–0.95)	0.78 (0.65–0.95)	0.75 (0.61–0.92)
P_trend		< 0.001	0.009	0.007	0.001
Women^a
Never	29,278	1.00	1.00	1.00	1.00
< 1 time/week	1137	0.66 (0.58–0.74)	0.79 (0.69–0.90)	0.81 (0.71–0.93)	0.88 (0.76–1.01) ^b
Weekly	928	0.55 (0.47–0.63)	0.65 (0.56–0.76)	0.70 (0.60–0.82)	0.77 (0.65–0.91) ^b
P_trend		< 0.001	< 0.001	< 0.001	< 0.001

In model 1, odds ratios were adjusted for age (continuous) and sex. Model 2 included additional adjustment for education level (no formal school, primary school, middle school, and high school or above), household income (≤ 19,999 yuan, 20,000–34,999 yuan, ≥ 35,000 yuan). Model 3 included additional adjustment for cigarette consumption (never, occasional, former, and current), alcohol consumption (never, occasional, former, and current), physical activity (continuous), meat consumption (daily and non-daily), fruit consumption (daily and non-daily), BMI (continuous), WC (continuous), snoring (never, occasional, and habitual), sleep duration (continuous)
^aWithout adjustment for sex, ^bAdditional adjustment for menopause status

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