Table 2. Characteristics of the included patients with T2DM in different age groups.
| Characteristic | Age (years) | P value | ||
| <60 | 60-80 | ≥80 | ||
| Number of patients | 801 | 1660 | 665 | |
| Diabetic duration(years) | 0.42 (0.08-4.92)a | 3.79 (0.17-10.42)b | 8.17 (1.42-15.75) c | <0.001 |
| <5 [n (%)] | 602 (75.16)a | 897 (54.04)b | 260 (39.10)c | <0.001 |
| 5-10 [n (%)] | 115 (14.36)a | 295 (17.77)a | 104 (15.64)a | |
| ≥10 [n (%)] | 84 (10.49)a | 468 (28.19)b | 301 (45.26)c | |
| Hypertension [n (%)] | <0.001 | |||
| Yes | 308 (38.45)a | 1051 (63.31)b | 515 (77.44)c | |
| No | 493 (61.55) | 609 (36.69) | 150 (22.56) | |
| SDP (mmHg) | 125 (120-135)a | 130 (120-140)b | 130 (120-140)c | <0.001 |
| DBP (mmHg) | 80 (71-88)a | 80 (70-82)b | 70 (69-80)c | <0.001 |
| BMI (kg/m2) | 25.40 (23.34-27.68)a | 24.91 (23.03-27.11)b | 24.34 (22.31-26.67)c | <0.001 |
| FPG (mmol/L) | 7.60 (6.50-9.60)a | 7.00 (6.00-8.23)b | 6.70 (5.80-7.90)c | <0.001 |
| PPG (mmol/L) | 12.70 (9.70-17.0)a | 11.10 (8.90-15.10)b | 11.10 (8.70-14.83)b | <0.001 |
| HbA1c (%) | 8.10 (6.8-10.20)a | 7.15 (6.40-9.00)b | 7.00 (6.40-8.20)b | <0.001 |
| TG (mmol/L) | 1.67 (1.14-2.50)a | 1.38 (0.99-1.98)b | 1.30 (0.93-1.80) c | <0.001 |
| TC (mmol/L) | 4.78 (4.17-5.43)a | 4.62 (3.99-5.29)b | 4.48 (3.83-5.20)c | <0.001 |
| LDL-C (mmol/L) | 2.81 (2.32-3.36)a | 2.77 (2.22-3.33)a | 2.64 (2.07-3.22)c | <0.001 |
| HDL-C (mmol/L) | 1.02 (0.87-1.20)a | 1.10 (0.93-1.32)b | 1.11 (0.95-1.34)b | <0.001 |
| Treatment [n (%)] | <0.001 | |||
| Diet and exercise alone | 146 (18.23)a | 298 (17.95)a | 101 (15.19)a | |
| 1 OADs alone | 289 (36.08)a | 519 (31.27)a,b | 195 (29.32)b | |
| 2 OADs alone | 175 (21.85)a | 344 (20.72)a | 136 (20.45)a | |
| ≥3 OADs alone | 18 (2.25)a | 100 (6.02)b | 29 (4.36)a,b | |
| Insulin alone | 19 (2.37)a | 51 (3.07)a | 28 (4.21)a | |
| Insulin+OADs | 154 (19.23)a | 348 (20.96)a | 176 (26.47)b | |
| Antihypertensive agents | <0.001 | |||
| Yes | 254 (31.71)a | 877 (52.83)b | 461 (69.32)c | |
| No | 547 (68.29) | 783 (47.17) | 204 (30.68) | |
| ARBs or ACEIs | <0.001 | |||
| Yes | 192 (23.97)a | 566 (34.10)b | 297 (44.66)c | |
| No | 609 (76.03) | 1094 (65.90) | 368 (55.34) | |
| Lipid-lowering agents | 0.096 | |||
| Yes | 349 (43.57)a | 769 (46.33)a | 277 (41.65)a | |
| No | 452 (56.43) | 891 (53.67) | 388 (58.35) | |
| Antiplatelet agents | <0.001 | |||
| Yes | 338 (42.20)a | 887 (53.43)b | 357 (53.68)b | |
| No | 463 (57.80) | 773 (46.57) | 308 (46.32) | |
Data are expressed as the median (Q1-Q3) or numbers and percentages, n (%); P values for comparison over all 3 categories.
a, b, c Each different subscript letter denotes a subset of age categories whose column proportions differ significantly from each other at P < 0.05.