Table 2.
Comparison of HbA1c-based and OGTT-based diagnostic categories by BMI group.
| HbA1c | OGTT | |||||||
|---|---|---|---|---|---|---|---|---|
|
NG
( n = 587) |
PreDM
( n = 410) |
DM
( n = 34) |
p |
NG
( n = 712) |
PreDM
( n = 269) |
DM
( n = 50) |
p | |
| Nonobese (n = 80) | 62 (77.5%) | 17 (21.3%) | 1 (1.3%) | 60 (75.0%) | 18 (22.5%) | 2 (2.5%) | ||
| Obese (n = 582) | 353 (60.7%) | 221 (38.0%) | 8 (1.4%) | 412 (70.8%) | 147 (25.3%) | 23 (4.0%) | ||
| M-obese (n = 369) | 172 (46.6%) | 172 (46.6%) | 25 (6.8%) | < 0.001 | 240 (65.0%) | 104 (28.2%) | 25 (6.8%) | 0.117 |
Note: Comparison of diagnostic distributions based on HbA1c and OGTT across BMI groups. Each cell presents the count and percentage of patients within the BMI group diagnosed as normal, prediabetic (PreDM), or diabetic (DM) according to the respective method. Chi-square test results are included for each method.