Table 2.
Descriptive characteristics of the first observation of 7176 non-diabetic Japanese citizens of Zentsuji city stratified by HbA1c category at study entry.
| HbA1c category | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| < 5.0% | 5.0–5.4% | 5.5–5.9% | 6.0–6.4% | Total | ||||||
| N | (%) | N | (%) | N | (%) | N | (%) | N | (%) | |
| Total | 799 | (11.13%) | 2829 | (39.42%) | 2902 | (40.44%) | 646 | (9.00%) | 7176 | (100%) |
| Variables | ||||||||||
| Sex | ||||||||||
| Female | 484 | (60.58%) | 1704 | (60.23%) | 1752 | (60.37%) | 338 | (52.32%) | 4278 | (59.62%) |
| Male | 315 | (39.42%) | 1125 | (39.77%) | 1150 | (39.63%) | 308 | (47.68%) | 2898 | (40.38%) |
| Age category | ||||||||||
| 34–59 | 437 | (54.69%) | 1276 | (45.10%) | 1013 | (34.91%) | 176 | (27.24%) | 2902 | (40.44%) |
| 60–69 | 223 | (27.91%) | 973 | (34.39%) | 1224 | (42.18%) | 301 | (46.59%) | 2721 | (37.92%) |
| ≥ 70 | 139 | (17.40%) | 580 | (20.50%) | 665 | (22.92%) | 169 | (26.16%) | 1553 | (21.64%) |
| BMI category | ||||||||||
| Normal | 658 | (82.35%) | 2273 | (80.35%) | 2077 | (71.57%) | 400 | (61.92%) | 5408 | (75.36%) |
| Overweight or obesea | 141 | (17.65%) | 556 | (19.65%) | 824 | (28.39%) | 246 | (38.08%) | 1767 | (24.62%) |
| Missing | 0 | (0.00%) | 0 | (0.00%) | 1 | (0.03%) | 0 | (0.00%) | 1 | (0.01%) |
| Self-reported drinking status | ||||||||||
| Nondrinker | 297 | (37.17%) | 1064 | (37.61%) | 1155 | (39.80%) | 284 | (43.96%) | 2800 | (39.02%) |
| Drinker | 259 | (32.42%) | 829 | (29.30%) | 730 | (25.16%) | 157 | (24.30%) | 1975 | (27.52%) |
| No answer | 243 | (30.41%) | 936 | (33.09%) | 1017 | (35.04%) | 205 | (31.73%) | 2401 | (33.46%) |
| Self-reported smoking status | ||||||||||
| Nonsmoker | 433 | (54.19%) | 1490 | (52.67%) | 1557 | (53.65%) | 361 | (55.88%) | 3841 | (53.53%) |
| Smoker | 130 | (16.27%) | 424 | (14.99%) | 349 | (12.03%) | 85 | (13.16%) | 988 | (13.77%) |
| No answer | 236 | (29.54%) | 915 | (32.34%) | 996 | (34.32%) | 200 | (30.96%) | 2347 | (32.71%) |
| Hypertensionb | ||||||||||
| No | 574 | (71.84%) | 1984 | (70.13%) | 2012 | (69.33%) | 397 | (61.46%) | 4967 | (69.22%) |
| Yes | 225 | (28.16%) | 844 | (29.83%) | 889 | (30.63%) | 249 | (38.54%) | 2207 | (30.76%) |
| Missing | 0 | (0.00%) | 1 | (0.04%) | 1 | (0.03%) | 0 | (0.00%) | 2 | (0.03%) |
| Dyslipidemiac | ||||||||||
| No | 547 | (68.46%) | 1813 | (64.09%) | 1636 | (56.37%) | 322 | (49.85%) | 4318 | (60.17%) |
| Yes | 211 | (26.41%) | 889 | (31.42%) | 1138 | (39.21%) | 283 | (43.81%) | 2521 | (35.13%) |
| Missing | 41 | (5.13%) | 127 | (4.49%) | 128 | (4.41%) | 41 | (6.35%) | 337 | (4.70%) |
| Residential area | ||||||||||
| East | 137 | (17.15%) | 534 | (18.88%) | 530 | (18.26%) | 118 | (18.27%) | 1319 | (18.38%) |
| Tatsukawa | 116 | (14.52%) | 453 | (16.01%) | 506 | (17.44%) | 111 | (17.18%) | 1186 | (16.53%) |
| South | 107 | (13.39%) | 406 | (14.35%) | 450 | (15.51%) | 124 | (19.20%) | 1087 | (15.15%) |
| Fudeoka | 126 | (15.77%) | 327 | (11.56%) | 353 | (12.16%) | 82 | (12.69%) | 888 | (12.37%) |
| Center | 106 | (13.27%) | 311 | (10.99%) | 294 | (10.13%) | 51 | (7.89%) | 762 | (10.62%) |
| Yoshiwara | 83 | (10.39%) | 281 | (9.93%) | 263 | (9.06%) | 46 | (7.12%) | 673 | (9.38%) |
| West | 60 | (7.51%) | 271 | (9.58%) | 261 | (8.99%) | 68 | (10.53%) | 660 | (9.20%) |
| Yogita | 51 | (6.38%) | 218 | (7.71%) | 208 | (7.17%) | 42 | (6.50%) | 519 | (7.23%) |
| Missing | 13 | (1.63%) | 28 | (0.99%) | 37 | (1.27%) | 4 | (0.62%) | 82 | (1.14%) |
Abbreviations: BMI, body mass index; HbA1c, glycated hemoglobin.
aOverweight or obese is defined as a BMI ≥ 25 kg/m2.
bHypertension is defined as systolic blood pressure ≥ 140 mmHg and/or diastolic blood pressure ≥ 90 mmHg.
cDyslipidemia is defined as serum low density lipoprotein cholesterol ≥ 140 mg/dL and/or serum high density lipoprotein cholesterol < 40 mg/dL.