Dose-response relationships between dairy intake and chronic metabolic diseases in a Chinese population.
JOURNAL OF DIABETES(2019)
Abstract
BackgroundThis study investigated associations between dairy intake and chronic metabolic diseases (CMDs), and evaluated possible dose-response relationships in Chinese. MethodsThis cross-sectional study included 6073 adults aged >= 18years from China. General characteristics were gathered using a validated dietary questionnaire. Multivariable logistic regression analyses investigated associations between dairy intake and chronic metabolic diseases (CMDs) (overweight/obesity, obesity, central obesity, and hyperlipidemia). Restricted cubic spline models explored dose-response relationships between dairy intake and CMDs, and possible dairy intake in the prevention of CMDs. Structural equation modeling explored the potential mechanisms of the effects of dairy intake on CMDs. ResultsSignificant inverse associations were found between dairy intake and overweight/obesity, obesity, central obesity, and hyperlipidemia, with odds ratios (ORs) of 0.66 (95% confidence interval [CI] 0.56-0.79), 0.63 (95% CI 0.47-0.85), 0.71 (95% CI 0.60-0.85), and 0.81 (95% CI 0.56-1.17), respectively (P<0.05 for all). The intake of yogurt, milk, and total dairy to prevent CMDs differed according to age group (16-74, 29-187, and 159-269mL/d, respectively, in the entire group; 69-110, 59-152, and 138-167mL/d, respectively, in the young group, <= 44 years; 9-58, 57-149, and 117-145mL/d, respectively, in the middle-aged group, 45-59 years; and 23-59mL/d yogurt only in the old group, >= 60 years). Structural equation modeling showed that dairy intake could reduce body mass index and waist circumference by regulating carbohydrate, fat, protein, and total energy. ConclusionsDairy intake was inversely associated with the prevalence of overweight, obesity, central obesity, and hyperlipidemia, and the optimal range of dairy intake differed with age. The beneficial effects of dairy intake in preventing CMDs could involve regulation of carbohydrate, fat, protein, and total energy. ?? ?? ????????(Cardiovascular autonomic neuropathy,CAN)?????????????????,?CAN?????2?????????????????????????2????????????CAN??????????? ?? ??2017?1??2018?5???219?2?????????????????????????(CARTs)??,?????????????????????????????24?????????????(7:00-23:00)???(23:00-7:00)?????????? ?? ?????,????????????CAN??????????(???:18.6%, ?????:29.9%,?????:36.2%,?????:60.0%, P-??=0.034)???,??????????(Nocturnal Ventricular Arrhythmias,NVA)???CARTs??(2.01.0 vs. 1.5 +/- 0.9,P<0.001)??;???????????????(9.5 +/- 5.7 bpm vs. 11.6 +/- 6.6 bpm,P=0.021)?Valsalva??(1.2 +/- 0.1 vs. 1.2 +/- 0.2,P=0.006)????,???????????????(-8.8 +/- 15.5mmHg vs. -4.1 +/- 11.2mmHg,P=0.023)?????????????,CAN????(OR=1.765,95% CI: 1.188 -2.632,P=0.005)?2?????????????????????? ?? 2??????CAN???????????????????????,?CAN?????????????????????2????????????????
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Key words
chronic metabolic diseases,dairy,obesity
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