ABSTRACT
Objective To examine the association between one-hour plasma glucose (1-hPG) level during an oral glucose tolerance test (OGTT) and serum lipid profiles in individuals with NGT. Methods 6 402 individuals with NGT who underwent a 75 g OGTT were screened from four communities of Hefei suburban areas, aged over 40 years. Then 1 291 cases of NGT were randomly selected as the object of this research by random data table method. They were divided into NGT-1 group (1-h PG < 8.6 mmol/L, n = 597)and NGT-2 group(1-h PG≥8.6 mmol/L, n = 694). Pearson correlation analysis and multivariate linear regression analyses were performed to assess correlations between 1-h PG levels and lipid profiles. Results (1) The average values of body mass index were 24.3 kg/m2 in NGT-1 group, and 24.5 kg/m2 in NGT-2 group. (2) Compared with individuals in NGT-1 group , fasting plasma glucose , two-hour plasma glucose during OGTT , HbA1c , triglyceride (TG), and high-density lipoprotein-cholesterol(HDL-c) levels, TG/HDL-c ratios, and total cholesterol(TCH)/HDL-c ratios were significantly higher in individuals than in NGT-2 group. By contranst, body mass index, blood pressure , TCH and low-density lipoprotein-cholesterol levels were not significantly different between NGT-1 group and NGT-2 group. (3) The multiple linear regression analyses showed that 1 h PG levels positively correlated with TG in individuals in both NGT-1 group and NGT-2 group (P < 0.01). In addition, 1-h PG levels negatively correlated with HDL-c ratio in both groups (P < 0.01). Conclusion 1-h PG levels during OGTT in overweight individuals with NGT closely correlate with HDL-c and TG levels.