Higher egg consumption associated with increased risk of diabetes in Chinese adults - China Health and Nutrition Survey

摘要

The association between egg consumption and diabetes is inconclusive. We aimed to examine the association between long-term egg consumption and its trajectory with diabetes in Chinese adults. A total of 8545 adults aged >= 18 years old who attended the China Health and Nutrition Survey from 1991 to 2009 were included in this analysis. Egg consumption at each survey was assessed by a 3-d 24-h recall and weighed food record methods. The consumption trajectories of eggs were modelled with the latent class group approach. Diabetes was diagnosed based on fasting blood glucose in 2009. Logistic regression was used to examine the association. The mean age of the study population was 50 center dot 9 (sd 15 center dot 1) years. About 11 center dot 1 % had diabetes in 2009. Egg consumption nearly doubled in 2009 from 16 g/d in 1991. Compared with the first quartile of egg consumption (0-9 center dot 0 g/d), the adjusted OR of diabetes for the second (9 center dot 1-20 center dot 6 g/d), third (20 center dot 7-37 center dot 5 g/d) and fourth (>= 37 center dot 6 g/d) quartiles were 1 center dot 29 (95 % CI 1 center dot 03, 1 center dot 62), 1 center dot 37 (95 % CI 1 center dot 09, 1 center dot 72) and 1 center dot 25 (95 % CI 1 center dot 04, 1 center dot 64), respectively (P-for trend = 0 center dot 029). Three trajectory groups of egg consumption were identified. Compared with group 1 (30 center dot 7 %, low baseline intake and slight increase), both group 2 (62 center dot 2 %, medium baseline intake and increase) and group 3 (7 center dot 1 %, high baseline intake and decrease) were associated with an increased OR for diabetes. The results suggested that higher egg consumption was positively associated with the risk of diabetes in Chinese adults.