Appendix Table 1.
Comparison of demographic data between random sampled diabetes cases and total diabetes incident cases
| Demographic | Baseline data, n (%) | |
|---|---|---|
|
| ||
| Random cases | Total incident diabetes cases | |
| n1=622 (freq %) | n2=1,182 (freq %%) | |
|
| ||
| Age (years), n (%) | ||
| <40 | 56 (9.00) | 102 (8.66) |
| 40~ | 207 (33.28) | 422 (35.74) |
| 50~ | 180 (28.94) | 309 (26.17) |
| 60~ | 123 (19.77) | 226 (19.11) |
| ≥70 | 56 (9.00) | 122 (10.32) |
| Education, n (%) | ||
| Uneducated | 24 (3.86) | 30 (2.51) |
| High school or less | 474 (76.21) | 877 (74.18) |
| Undergraduate | 124 (19.94) | 216 (18.31) |
| Graduated or above | 0 (0.00) | 59 (5.00) |
| Smoking index (pack-year), n (%) * | ||
| No | 282 (45.34) | 523 (44.26) |
| 0~6.62 | 39 (6.27) | 90 (7.65) |
| 6.63~14.07 | 68 (10.93) | 105 (8.88) |
| 14.08~23.28 | 60 (9.65) | 141 (11.91) |
| ≥23.29 | 173 (27.81) | 323 (27.29) |
| Alcohol index (kilogram-year), n (%) † | ||
| No | 413 (66.40) | 825 (69.82) |
| 0~72.26 | 27 (4.34) | 55 (4.62) |
| 72.27~167.53 | 50 (8.04) | 79 (6.71) |
| 167.54~380.11 | 61 (9.81) | 91 (7.73) |
| ≥380.12 | 71 (11.41) | 131 (11.12) |
| Exercise, n (%) ‡ | ||
| No | 67 (10.77) | 98 (8.29) |
| Occasionally | 218 (35.05) | 443 (37.51) |
| Often | 337 (54.18) | 641 (54.2) |
| BMI Categories, n (%) | ||
| ≤18.5 | 11 (1.77) | 30 (2.56) |
| 18.5~ | 183 (29.42) | 321 (27.18) |
| 24.0~ | 284 (45.66) | 565 (47.77) |
| ≥28 | 144 (23.15) | 266 (22.49) |
| Hypertension status, n (%) | ||
| Normal (<120/80 mmHg) | 133 (21.38) | 250 (21.16) |
| Elevated (120–129/<80 mmHg) | 177 (28.46) | 340 (28.74) |
| Stage I (130–139/80–89 mmHg) | 189 (30.39) | 333 (28.16) |
| Stage II (>=140/90 mmHg) | 123 (19.77) | 259 (21.95) |
| diabetes family history, n (%) | ||
| Yes | 128 (20.50) | 231 (19.52) |
| No | 494 (79.50) | 951 (80.48) |
*
: Smoking index was categorized by the quartile distribution of pack-year based on the distribution of diabetes-free population at baseline.
†
: Alcohol index was categorized by the quartile distribution of alcohol intake weight based on the distribution of the diabetes-free population at baseline.
‡
: Exercise last more than 30 minutes was defined as a valid exercise; Occasionally exercise was defined as exercise less than 3 times per week; Often exercise is defined as at least 3 times per week, each time lasts more than 30 minutes.