Observational Study
Copyright ©The Author(s) 2024.
World J Diabetes. Oct 15, 2024; 15(10): 2081-2092
Published online Oct 15, 2024. doi: 10.4239/wjd.v15.i10.2081
Table 1 Basic characteristics of the population
Characteristics
All (n = 994)Non-HDL-C levels (mmol/L)
P value
< 3.4 (n = 605)
3.4-4.9 (n = 316)
> 4.9 (n = 73)
Age (years)65.8 (35.0-89.0)66.0 (36.0-89.0)64.0 (35.0-86.0)64.0 (36.0-83.6)0.010
Sex (male/female)447/547278/327140/17629/440.576
Disease duration of T2DM (years)13.0 (0.0-40.0)13.0 (0.0-35.0)13.0 (0.0-40.0)11.0 (0.02-30.0)0.336
BMI (kg/m2)25.6 (14.38-47.97)25.6 (14.38-45.45)25.6 (16.0-47.9)25.6 (19.5-41.1)0.743
SBP (mmHg)130 (90-210)130 (90-190)130 (90-210)130 (110-180)0.294
DBP (mmHg)80 (50-120)80 (50-120)80 (50-110)80 (60-100)0.162
FPG (mmol/L)8.22 (2.88-24.52)7.79 (3.12-24.17)8.84 (2.88-23.49)9.97 (3.25-24.52)< 0.001
Fasting C peptide (ng/mL)2.30 (0.01-16.34)2.21 (0.01-13.35)2.37 (0.17-16.34)2.78 (0.27-6.93)0.008
HOMA-IR4.47 (0.04-279.63)4.22 (0.05-243.20)4.74 (0.47-279.63)5.43 (0.04-34.27)0.047
HbA1c (%)8.1 (4.9-15.1)7.8 (4.9-14.8)8.7 (5.4-15.1)9.2 (6.0-14.7)< 0.001
Creatinine (μmoI/L)62 (28-266)62 (30-241)60 (28-230)65 (30-266)0.016
eGFR [mL/min (1.73 m2)-1]101.1 (19.1-323.7)100.7 (21.1-291.4)103.5 (19.1-323.7)95.0 (22.4-284.9)0.009
UA (mmol/L)324 (7-811)324 (7-811)321 (98-797)338 (209-612)0.126
UACR (mg/g)4.0 (0.0-2404.2)4.1 (0.0-1637.8)2.6 (0.0-1796.2)12.8 (0.1-2402.2)0.013
25(OH)D (ng/mL)16.80 (3.00-57.55)17.52 (3.00-57.55)16.57 (3.00-50.21)14.73 (3.31-35.78)0.039
Fatty liver, n (%)533 (54.1)304 (50.6)180 (57.7)49 (67.1)0.002
Hypertension, n (%)561 (56.8)344 (57.2)172 (54.8)45 (61.6)0.530
Cardiovascular disease, n (%)155 (27.5)111 (33.5)34 (82.9)10 (24.4)0.002
Diabetic retinopathy, n (%)238 (24.1)142 (23.6)68 (21.8)28 (38.4)0.011
Diabetic peripheral neuropathy, n (%)411 (41.7)248 (41.2)123 (49.5)40 (54.8)0.055
Diabetic peripheral vascular disease, n (%)157 (38.8)89 (38.5)55 (38.5)13 (41.9)0.931
Serum lipid level (mmol/L)
TG1.35 (0.24-21.80)1.37 (0.24-8.59)1.69 (0.39-9.99)2.51 (0.63-21.80)< 0.001
TC4.25 (2.03-10.35)3.74 (2.03-5.74)5.07 (4.13-7.20)6.53 (5.58-10.35)< 0.001
LDL-C2.51 (0.15-6.88)2.08 (0.15-3.80)3.28 (1.12-4.66)4.32 (1.37-6.88)< 0.001
HDL-C1.10 (0.33-3.42)1.10 (0.33-3.42)1.10 (0.47-2.66)1.09 (0.58-1.90)0.896
non-HDL-C3.10 (1.02-9.30)2.56 (1.02-3.39)3.95 (3.40-4.89)5.3 (4.90-9.30)< 0.001
RC0.53 (-1.31-7.93)0.45 (-1.31-2.40)0.67 (-0.34-3.66)1.13 (-0.33-7.93)< 0.001
Thyroid function and indices of thyroid hormone sensitivity
FT3 (pg/mL)2.93 (0.91-4.49)2.93 (0.91-4.19)2.97 (1.01-4.49)2.80 (1.15-3.97)0.006
FT4 (ng/dL)1.19 (0.72-1.59)1.18 (0.72-1.92)1.18 (0.75-1.96)1.21 (0.76-1.59)0.905
TSH (uIU/mL)1.74 (0.01-9.89)1.65 (0.07-9.89)1.86 (0.07-9.48)2.03 (0.16-9.12)0.017
FT3/FT42.47 ± 0.472.47 ± 0.472.48 ± 0.452.34 ± 0.520.040
TT4RI2.10 (0.01-12.23)1.99 (0.10-9.89)2.27 (0.1-12.23)2.56 (0.20-8.43)0.008
TSHI0.72 (-4.43-2.42)0.66 (-2.48-2.42)0.79 (-4.43-2.42)0.91 (-1.66-2.63)0.010
TFQI0.00 ± 0.35-0.02 ± 0.360.03 ± 0.340.08 ± 0.340.026
Table 2 Correlations between non-high-density lipoprotein cholesterol levels and thyroid parameters in patients with type 2 diabetes mellitus
VariablesAll
Male
Female
r
P value
r
P value
r
P value
FT3 (pg/mL)Model 1-0.090a0.005-0.153a0.001-0.0620.147
Model 2-0.128a< 0.001-0.187a< 0.001-0.0950.027
Model 3-0.113a< 0.001-0.168a< 0.001-0.0820.059
FT4 (ng/dL)Model 1-0.0080.795-0.115b0.0150.0140.737
Model 2-0.0130.693-0.118b0.0130.0120.78
Model 3-0.0240.451-0.14a0.00300.991
TSH (uIU/mL)Model 10.073b0.0220.141a0.0030.0070.867
Model 20.079b0.0140.143a0.0020.0160.714
Model 30.093a0.0040.154a0.0010.0240.575
FT3/FT4Model 1-0.0510.107-0.0190.694-0.0750.078
Model 2-0.076b0.017-0.0370.441-0.101b0.019
Model 3-0.0330.301-0.0030.942-0.0520.228
TT4RIModel 10.076b0.0180.121b0.010.0370.394
Model 20.079b0.0130.121b0.0110.0440.308
Model 30.088a0.0060.129a0.0070.0460.286
TSHIModel 10.085a0.0080.129a0.0060.0520.224
Model 20.087a0.0060.129a0.0070.0580.175
Model 30.103a0.0010.14a0.0030.0690.111
TFQIModel 10.078b0.0140.0290.5390.121a0.004
Model 20.074b0.020.0240.6120.121a0.005
Model 30.065b0.0440.0140.7770.109b0.011
Table 3 Relationships between lipid profiles and thyroid-associated variables
VariablesTG
TC
LDL-C
HDL-C
RC
r
P value
r
P value
r
P value
r
P value
r
P value
FT3 (pg/mL)Model 1-0.092a0.004-0.116a< 0.001-0.086a0.007-0.093a0.004-0.0370.246
Model 2-0.114a< 0.001-0.149a< 0.001-0.106a0.001-0.083a0.009-0.081b0.011
Model 3-0.099a0.002-0.137a< 0.001-0.094a0.003-0.097a0.003-0.068b0.035
FT4 (ng/dL)Model 1-0.0070.8380.0010.9710.0080.80.030.352-0.0320.312
Model 2-0.010.764-0.0030.9280.0060.840.030.349-0.0390.224
Model 3-0.020.535-0.0120.717-0.0020.9480.0370.249-0.0480.139
TSH (uIU/mL)Model 10.074b0.0210.0450.1570.040.206-0.080b0.0130.083a0.01
Model 20.077b0.0160.050.120.0430.177-0.082b0.010.09a0.005
Model 30.082b0.010.0630.050.0560.084-0.08b0.0120.095a0.003
FT3/FT4Model 1-0.082b0.01-0.093a0.003-0.065b0.041-0.141a< 0.0010.0080.802
Model 2-0.095a0.003-0.114a< 0.001-0.078b0.015-0.134a< 0.001-0.0210.519
Model 3-0.0610.06-0.082b0.011-0.0450.167-0.163a< 0.0010.010.749
TT4RIModel 10.079b0.0130.0520.1020.0460.147-0.066b0.0390.078b0.014
Model 20.081b0.0110.0550.0870.0480.133-0.068b0.0340.082b0.01
Model 30.081b0.0120.065b0.0430.0570.075-0.0610.0570.083b0.01
TSHIModel 10.099a0.0020.0610.0560.0480.135-0.066b0.0390.095a0.003
Model 20.1a0.0020.063b0.0490.0490.126-0.067b0.0360.098a0.002
Model 30.103a0.0010.079b0.0140.064b0.047-0.0590.0650.102a0.002
TFQIModel10.087a0.0060.074b0.020.0590.066-0.0030.9220.0610.054
Model20.085a0.0080.071b0.0260.0560.078< 0.0010.9890.0570.076
Model30.068b0.0350.068b0.0350.0520.1060.020.5290.0430.181
Table 4 Logistic regression analysis of the relationship between non-high-density lipoprotein cholesterol and impaired sensitivity to thyroid hormones in patients with type 2 diabetes mellitus
VariablesAll
Male
Female
OR (95%CI)
P value
OR (95%CI)
P value
OR (95%CI)
P value
FT3 (pg/mL)0.91 (0.71-1.166)0.4560.698 (0.41-1.191)0.1871.002 (0.769-1.306)0.987
FT4 (ng/dL)0.919 (0.689-1.225)0.5640.194 (0.061-0.617)0.0051.012 (0.775-1.32)0.932
TSH (uIU/mL)1.091 (1.015-1.172)0.0181.136 (1.02-1.264)0.021.037 (0.935-1.15)0.49
FT3/FT41.01 (0.754-1.352)0.9491.369 (0.861-2.177)0.1840.846 (0.577-1.24)0.392
TT4RI1.075 (1.006-1.149)0.0321.086 (0.985-1.197)0.0971.055 (0.963-1.156)0.252
TSHI1.238 (1.034-1.482)0.021.331 (1.003-1.766)0.0481.155 (0.918-1.452)0.218
TFQI1.584 (1.088-2.304)0.0160.961 (0.545-1.692)0.892.337 (1.4-3.901)0.001