Case Control Study
Copyright ©The Author(s) 2024.
World J Diabetes. Mar 15, 2024; 15(3): 403-417
Published online Mar 15, 2024. doi: 10.4239/wjd.v15.i3.403
Table 2 Comparison of baseline characteristics among type 2 diabetes mellitus patients stratified by the tertiles of age
Characteristics
Total (n = 689)
Younger1 (n = 219)
Older2 (n = 470)
χ2/t/z
P value
Women [n (%)]295 (42.8)111 (50.7)184 (39.1)8.1200.004
Age (yr)55.59 ± 10.8843.71 ± 7.2361.12 ± 7.25-29.374< 0.001
Height (cm)166.89 ± 8.24167.33 ± 8.55166.69 ± 8.10.9510.342
Weight (kg)70.00 (62.00-80.00)71.00 (62.00-82.00)70.00 (62.00-80.00)-1.1780.239
Diabetes duration (yr)7.33 ± 6.204.44 ± 3.828.68 ± 6.62-10.603< 0.001
BMI (kg/m2)25.39 (23.23-27.78)25.42 (23.11-28.34)25.39 (23.32-27.55)-1.0010.317
SBP (mmHg)133.84 ± 15.34128.84 ± 13.78136.16 ± 15.49-5.977< 0.001
DBP (mmHg)81.00 ± 9.8881.74 ± 10.1580.65 ± 9.751.3420.180
Hypertension [n (%)]333 (48.3)66 (30.1)267 (56.8)42.556< 0.001
GNRI (score)105.61 (99.64-112.01)107.2 (101.18-113.56)105.09 (98.93-110.98)-2.8800.004
Glucose-lowering therapies
Lifestyle alone [n (%)]121 (17.6)58 (26.5)63 (13.4)17.653< 0.001
Insulin treatments [n (%)]248 (36.0)73 (33.3)175 (37.2)0.9870.321
Insulin secretagogues [n (%)]222 (32.2)44 (20.1)178 (37.9)21.627< 0.001
Insulin sensitizers [n (%)]79 (11.5)20 (9.1)59 (12.6)1.7221.189
Metformin [n (%)]322 (46.7)92 (42.0)230 (48.9)2.8800.090
AGIs [n (%)]105 (15.2)29 (13.2)76 (16.2)0.9920.319
DPP-4Is [n (%)]57 (8.3)19 (8.7)38 (8.1)0.0690.793
SGLT-2Is [n (%)]93 (13.5)26 (11.9)67 (14.3)0.7270.394
GLP-1RAs [n (%)]41 (6.0)15 (6.8)26 (5.5)0.4630.496
Statins [n (%)]122 (17.7)38 (17.4)84 (17.9)0.0280.868
Laboratory findings
HbA1c (%)8.99 ± 1.858.99 ± 1.98.98 ± 1.820.0750.941
Albumin (g/L)38.50 (36.20-41.30)39.00 (36.8-41.6)38.25 (35.8-41)-2.4700.014
Cr (µmol/L)58.51 ± 21.3252.09 ± 12.7561.5 ± 23.74-6.750< 0.001
UA (µmol/L)312.68 ± 99.25317.68 ± 112.65310.35 ± 92.390.9030.367
TG (mmol/L)1.89 (1.18-3.11)1.99 (1.28-3.41)1.78 (1.15-2.87)-1.9400.052
TC (mmol/L)4.41 ± 1.064.5 ± 1.094.37 ± 1.041.4750.141
HDL-C (mmol/L)1.14 ± 0.271.09 ± 0.251.16 ± 0.27-3.0490.002
LDL-C (mmol/L)2.81 ± 0.872.85 ± 0.872.79 ± 0.870.8030.422
TBil (µmol/L)11.21 ± 4.7110.99 ± 4.2811.31 ± 4.89-0.8360.404
OS (ng/mL)11.85 ± 3.9911.93 ± 3.4311.81 ± 4.230.4090.683
β-CTX (ng/mL)0.45 ± 0.220.47 ± 0.210.45 ± 0.231.1370.256
TP1NP (ng/mL)40.73 ± 14.5341.58 ± 13.8440.34 ± 14.841.0440.297
DXA parameters (g/cm2)
LS-BMD0.97 ± 0.161.00 ± 0.140.95 ± 0.164.126< 0.001
FN-BMD0.77 ± 0.120.82 ± 0.120.75 ± 0.126.360< 0.001
H-BMD0.91 ± 0.130.94 ± 0.120.89 ± 0.135.441< 0.001
T-BMD1.10 ± 0.121.13 ± 0.11.08 ± 0.124.643< 0.001
Body composition
Total body fat (%)31.03 ± 6.5631.76 ± 6.2530.69 ± 6.682.0010.046
Android/gynoid ratio1.31 ± 0.221.3 ± 0.221.31 ± 0.21-0.1070.915
Fat mass index (kg/m2)7.53 (6.20-9.09)7.94 (6.55-9.26)7.32 (6.17-8.99)-2.6210.009
Lean mass index (kg/m2)16.95 (15.53-18.54)17.01 (15.45-18.66)16.94 (15.56-18.51)-0.9520.341
ASMI (kg/m2)7.09 ± 1.177.23 ± 1.317.02 ± 1.092.0260.043