Interaction between family history of diabetes and hyperlipidemia on risk of diabetes in population with normotension in Harbin: a cross-sectional study / 中华流行病学杂志

ABSTRACT

Objective To explore the interaction between family history of diabetes and hyperlipidemia on the risk of diabetes in population with normotension.Methods A multistage stratified probability random sampling was conducted to select a representative sample of urban residents aged 20-74 years in Harbin.A total of 376 diabetes patients with normotension and 3 692 residents with normal blood pressure,normal fasting glucose,and normal 2 hours glucose from OGTT were surveyed.The interaction was evaluated by using crossover analysis and additive model.Results Multivariate logistic regression analysis indicated that there was a possible additive interaction between family history of diabetes and hyperlipidemia on the risk of diabetes.The relative excess risk due to the interaction,the attributable proportion due to the interaction,and the synergy index were 1.97 (95％CI:-0.32-4.26),0.30 (95％CI:0.03-0.57),and 1.54 (95％CI:0.96-2.47),respectively.There were significant combination effects between family history of diabetes and high both total cholesterol and triglyceride,isolated high total cholesterol,and isolated high triglyceride levels;the ORs were 10.55 (95％CI:5.62-19.80),7.81 (95％CI:3.65-16.71) and 5.13 (95％CI:3.22-8.16),respectively.Conclusion There might be synergistic effect between family history of diabetes and hyperlipidemia on the risk of diabetes in population with normotension.