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Case Control Study
Copyright ©The Author(s) 2026.
World J Diabetes. Jan 15, 2026; 17(1): 114624
Published online Jan 15, 2026. doi: 10.4239/wjd.v17.i1.114624
Table 1 Baseline characteristics of subjects according to diabetes mellitus status
Group
Total (n = 1714859)
Normal (n = 857846)
IFG (n = 457410)
DM (n = 399603)
P value
Age (year)57.78 ± 14.6854.81 ± 15.6559.25 ± 13.6662.50 ± 11.89< 0.0001
    39198542 (11.58)149867 (17.47)35887 (7.85)12788 (3.20)< 0.0001
    40-64902922 (52.65)449993 (52.46)249689 (54.59)203240 (50.86)
    ≥ 65613395 (35.77)257986 (30.07)171834 (37.57)183575 (45.94)
Sex (male)815109 (47.53)350599 (40.87)236377 (51.68)228133 (57.09)< 0.0001
Smoking< 0.0001
    Non1119098 (65.26)599967 (69.94)286581 (62.65)232550 (58.2)
    Former284742 (16.60)118485 (13.81)85402 (18.67)80855 (20.23)
    Current311019 (18.14)139394 (16.25)85427 (18.68)86198 (21.57)
Heavy drinker1< 0.0001
    Non1068788 (62.33)544658 (63.49)271279 (59.31)252851 (63.28)
    Mild534295 (31.16)272101 (31.72)149782 (32.75)112412 (28.13)
    Heavy111776 (6.52)41087 (4.79)36349 (7.95)34340 (8.59)
Physical activity-regular351280 (20.48)174600 (20.35)94593 (20.68)82087 (20.54)< 0.0001
Income-low2373049 (21.75)183523 (21.39)97205 (21.25)92321 (23.1)< 0.0001
Hypertension883385 (51.51)336506 (39.23)249054 (54.45)297825 (74.53)< 0.0001
Dyslipidemia613846 (35.8)229687 (26.77)165923 (36.27)218236 (54.61)< 0.0001
eGFR < 60 mL/minute/1.73 m2991664 (57.83)472872 (55.12)279726 (61.15)239066 (59.83)< 0.0001
Proteninuria, positive799235 (46.61)411203 (47.93)195049 (42.64)192983 (48.29)< 0.0001
Height, cm161.43 ± 9.46161.22 ± 9.36161.73 ± 9.62161.53 ± 9.48< 0.0001
Weight, kg63.98 ± 12.4362.00 ± 11.9065.46 ± 12.6366.52 ± 12.60< 0.0001
BMI, kg/m224.44 ± 3.5523.75 ± 3.4124.90 ± 3.4925.39 ± 3.61< 0.0001
Waist circumference, cm82.70 ± 9.7680.17 ± 9.6083.97 ± 9.2586.68 ± 9.05< 0.0001
Fasting glucose, mg/dL108.24 ± 36.0288.85 ± 7.41108.53 ± 6.79149.52 ± 53.73< 0.0001
SBP, mmHg126.37 ± 16.40123.28 ± 15.91128.38 ± 16.05130.71 ± 16.47< 0.0001
DBP, mmHg77.69 ± 10.6976.40 ± 10.4979.16 ± 10.7078.78 ± 10.75< 0.0001
Total cholesterol, mg/dL198.27 ± 41.31197.97 ± 38.72205.44 ± 41.04190.72 ± 45.40< 0.0001
HDL-C, mg/dL53.87 ± 16.2655.79 ± 16.6953.81 ± 15.8249.82 ± 15.00< 0.0001
LDL-C, mg/dL116.05 ± 37.74117.34 ± 35.65121.51 ± 38.03107.02 ± 40.10< 0.0001
eGFR, mL/minute/1.73 m268.52 ± 24.0271.03 ± 25.2366.63 ± 22.0365.30 ± 22.94< 0.0001
Triglyceride, mg/dL122.65 (122.54-122.75)107.31 (107.18-107.43)132.22 (132.01-132.43)149.92 (149.67-150.18)< 0.0001
Table 2 Baseline characteristics of participants by level of body mass index
GroupBMI (kg/m2)
P value
< 18.5 (n = 56566)
< 23 (n = 535450)
< 25 (n = 410244)
< 30 (n = 602426)
≥ 30 (n = 110173)
Age (year)51.24 ± 20.2856.65 ± 15.9959.59 ± 13.3958.95 ± 13.1953.53 ± 14.69< 0.0001
    3919502 (34.48)80030 (14.95)30517 (7.44)47728 (7.92)20765 (18.85)< 0.0001
    40-6419602 (34.65)270107 (50.44)220489 (53.75)332408 (55.18)60316 (54.75)
    ≥ 6517462 (30.87)185313 (34.61)159238 (38.82)222290 (36.9)29092 (26.41)
Sex (male)16627 (29.39)210349 (39.28)207643 (50.61)326356 (54.17)54134 (49.14)< 0.0001
Smoking< 0.0001
    Non41252 (72.93)374889 (70.01)263541 (64.24)370438 (61.49)68978 (62.61)
    Former4484 (7.93)67386 (12.58)74651 (18.20)120838 (20.06)17383 (15.78)
    Current10830 (19.15)93175 (17.40)72052 (17.56)111150 (18.45)23812 (21.61)
Drinking1< 0.0001
    Non36289 (64.15)345181 (64.47)256710 (62.57)364598 (60.52)66010 (59.91)
    Mild17634 (31.17)162628 (30.37)127973 (31.19)191763 (31.83)34297 (31.13)
    Heavy2643 (4.67)27641 (5.16)25561 (6.23)46065 (7.65)9866 (8.96)
Physical activity-regular27235 (12.79)106891 (19.96)91849 (22.39)126601 (21.02)18704 (16.98)< 0.0001
Income-low313067 (23.10)120206 (22.45)87657 (21.37)127458 (21.16)24661 (22.38)< 0.0001
Hypertension14261 (25.21)206166 (38.5)212345 (51.76)372258 (61.79)78355 (71.12)< 0.0001
Dyslipidemia8264 (14.61)143192 (26.74)150791 (36.76)258843 (42.97)52756 (47.88)< 0.0001
eGFR < 60 mL/minute/1.73 m223040 (40.73)298062 (55.67)255719 (62.33)363721 (60.38)51122 (46.40)< 0.0001
Proteninuria, positive35622 (62.97)259211 (48.41)172597 (42.07)267338 (44.38)64467 (58.51)< 0.0001
Height, cm160.74 ± 8.76160.7 ± 8.93161.42 ± 9.38161.95 ± 9.74162.48 ± 10.69< 0.0001
Weight, kg45.11 ± 5.5054.95 ± 6.9262.64 ± 7.4570.7 ± 9.2185.8 ± 13.26< 0.0001
BMI, kg/m217.4 ± 0.9221.21 ± 1.223.95 ± 0.5726.86 ± 1.3332.35 ± 2.53< 0.0001
Waist circumference, cm66.44 ± 6.2075.24 ± 6.6182.12 ± 5.8388.33 ± 6.3798.71 ± 8.13< 0.0001
Fasting glucose, mg/dL98.56 ± 34.86103.29 ± 34.63107.86 ± 34.75111.82 ± 36.18119.11 ± 41.66< 0.0001
SBP, mmHg116.46 ± 16.62122.15 ± 16.2126.51 ± 15.6129.54 ± 15.56134.12 ± 16.85< 0.0001
DBP, mmHg72.68 ± 10.4775.16 ± 10.2777.49 ± 10.1379.56 ± 10.4283.07 ± 11.85< 0.0001
Total cholesterol, mg/dL185.47 ± 37.79194.51 ± 39.8199.27 ± 41.18201.09 ± 42.17204.02 ± 43.11< 0.0001
HDL-C, mg/dL63.82 ± 19.0657.73 ± 17.353.03 ± 15.5650.85 ± 14.6849.66 ± 14.08< 0.0001
LDL-C, mg/dL102.76 ± 33.77113.4 ± 36.16117.81 ± 37.74118.01 ± 38.69118.47 ± 39.65< 0.0001
eGFR, mL/minute/1.73 m278.73 ± 29.0170.14 ± 25.3866.19 ± 22.4466.76 ± 22.4373.77 ± 25.75< 0.0001
Triglyceride, mg/dL82.17 (81.84-82.52)100.83 (100.68-100.98)124.19 (123.99-124.4)142.81 (142.61-143)162.06 (161.55-162.58)< 0.0001
Table 3 Baseline characteristics of participants by level of waist circumferences
GroupWCs (male/female)
< 80/< 75 (n = 445617)
< 85/< 80 (n = 358075)
< 90/< 85 (n = 378139)
< 95/< 90 (n = 273818)
< 100/< 95 (n = 149269)
≥ 100/≥ 95 (n = 109941)
P value
Age (year)52.37 ± 16.1758.13 ± 13.7360.06 ± 13.2060.82 ± 13.1661.02 ± 13.6658.81 ± 15.12< 0.0001
    39198542 (11.58)96433 (21.64)32726 (9.14)26123 (6.91)17981 (6.57)11316 (7.58)< 0.0001
    40-64902922 (52.65)239284 (53.70)202415 (56.53)201019 (53.16)138486 (50.58)70970 (47.55)
    ≥ 65613395 (35.77)109900 (24.66)122934 (34.33)150997 (39.93)117351 (42.86)66983 (44.87)
Sex (male)815109 (47.53)160554 (36.03)184340 (51.48)198169 (52.41)147268 (53.78)73968 (49.55)< 0.0001
Smoking< 0.0001
    Non321941 (72.25)226439 (63.24)236728 (62.60)167768 (61.27)95150 (63.74)321941 (72.25)
    Former48723 (10.93)62843 (17.55)72346 (19.13)55303 (20.20)27670 (18.54)48723 (10.93)
    Current74953 (16.82)68793 (19.21)69065 (18.26)50747 (18.53)26449 (17.72)74953 (16.82)
Drinking1< 0.0001
    Non278821 (62.57)218854 (61.12)234984 (62.14)169578 (61.93)95478 (63.96)71073 (64.65)
    Mild145938 (32.75)116100 (32.42)117063 (30.96)83123 (30.36)42164 (28.25)29907 (27.20)
    Heavy20858 (4.68)23121 (6.46)26092 (6.90)21117 (7.71)11627 (7.79)8961 (8.15)
PA-regular291577 (20.55)80060 (22.36)81067 (21.44)54497 (19.90)26872 (18.00)17207 (15.65)< 0.0001
Income-low3100487 (22.55)76710 (21.42)80359 (21.25)58281 (21.28)32372 (21.69)100487 (22.55)< 0.0001
Hypertension133696 (30.00)169039 (47.21)215195 (56.91)176686 (64.53)105284 (70.53)83485 (75.94)< 0.0001
Dyslipidemia97624 (21.91)120857 (33.75)150220 (39.73)119632 (43.69)70589 (47.29)54924 (49.96)< 0.0001
eGFR < 60 mL/minute/1.73 m2217826 (48.88)212775 (59.42)236063 (62.43)171542 (62.65)92273 (61.82)61185 (55.65)< 0.0001
Proteninuria, positive243137 (54.56)160187 (44.74)159386 (42.15)116057 (42.38)65197 (43.68)55271 (50.27)< 0.0001
Height, cm160.3 ± 8.52161.43 ± 9.18161.64 ± 9.58162.18 ± 9.91162.02 ± 10.24162.57 ± 10.75< 0.0001
Weight, kg54.07 ± 7.7561.23 ± 8.5265.2 ± 9.3969.53 ± 10.3173.53 ± 11.4582.1 ± 15.06< 0.0001
BMI, kg/m221 ± 2.1723.42 ± 1.9524.86 ± 2.0526.33 ± 2.1927.88 ± 2.4030.88 ± 3.55< 0.0001
WC, cm70.92 ± 4.9779.6 ± 2.9184.52 ± 2.989.45 ± 2.8294.14 ± 2.88101.99 ± 5.56< 0.0001
FBS, mg/dL99.68 ± 31.06106.53 ± 34.58109.96 ± 35.92112.9 ± 37.22115.71 ± 38.98120.79 ± 43.36< 0.0001
SBP, mmHg119.97 ± 15.86125.62 ± 15.69127.97 ± 15.59129.87 ± 15.71131.38 ± 15.91133.72 ± 16.80< 0.0001
DBP, mmHg74.46 ± 10.2577.24 ± 10.2678.42 ± 10.2979.42 ± 10.5280.29 ± 10.7981.91 ± 11.65< 0.0001
TC, mg/dL193.52 ± 38.91198.98 ± 40.9200.18 ± 41.8200.21 ± 42.38200.46 ± 43.09200.89 ± 43.59< 0.0001
HDL-C, mg/dL59.99 ± 17.7953.94 ± 16.0251.8 ± 14.8950.52 ± 14.4850.03 ± 14.5149.54 ± 14.12< 0.0001
LDL-C, mg/dL112.21 ± 35.32117.59 ± 37.46117.95 ± 38.22117.2 ± 38.90116.67 ± 39.66116.33 ± 39.70< 0.0001
eGFR, mL/minute/1.73 m274.08 ± 26.4467.72 ± 23.1965.91 ± 22.2265.51 ± 22.0365.77 ± 22.7468.84 ± 25.00< 0.0001
Triglyceride, mg/dL92.04 (91.9-92.19)119.72 (119.51-119.93)133.83 (133.6-134.06)144.27 (143.98-144.56)151.22 (150.81-151.62)158.00 (157.51-158.48)< 0.0001
Table 4 Multivariate cox analysis for incident cardiovascular outcome by diabetes mellitus status
OutcomeDM statusnEvents (n)Duration, PYIR, per 1000Adjusted HR (95%CI)
Model 1
Model 2
Model 3
CVDNormal857846475906508730.397.311 (reference)1 (reference)1 (reference)
IFG457410320923393918.309.461.30 (1.28-1.32)1.07 (1.05-1.08)1.04 (1.03-1.06)
DM399603481512824691.2817.052.35 (2.32-2.38)1.69 (1.67-1.72)1.57 (1.55-1.59)
MINormal857846226576586843.493.441 (reference)1 (reference)1 (reference)
IFG457410150833446873.194.381.28 (1.25-1.30)1.06 (1.04-1.09)1.05 (1.02-1.07)
DM399603231932901757.437.992.35 (2.30-2.39)1.73 (1.70-1.76)1.60 (1.57-1.63)
StrokeNormal857846277256568204.744.221 (reference)1 (reference)1 (reference)
IFG457410190653433118.715.551.32 (1.30-1.34)1.07 (1.05-1.09)1.05 (1.03-1.07)
DM399603289722881142.9710.062.40 (2.36-2.44)1.70 (1.67-1.73)1.58 (1.56-1.61)
DeathNormal857846661496652038.989.941 (reference)1 (reference)1 (reference)
IFG457410459753490148.7113.171.33 (1.32-1.35)1.03 (1.02-1.04)1.03 (1.02-1.05)
DM399603705202965646.5823.782.41 (2.39-2.44)1.61 (1.60-1.63)1.60 (1.58-1.62)
Table 5 Multivariate cox analysis for incident cardiovascular outcome by level of body mass index
OutcomeBMI status (kg/m2)nEvents (n)Duration, PYIR, per 1000Adjusted HR (95%CI)
Model 1
Model 2
Model 3
CVD< 18.5565663383397648.608.510.91 (0.88-0.94)1.10 (1.07-1.14)1.12 (1.08-1.16)
< 23535450371653947307.389.421 (reference)1 (reference)1 (reference)
< 25410244319953058693.7610.461.11 (1.09-1.13)0.99 (0.97-1.00)0.97 (0.96-0.98)
< 30602426474274504619.2410.531.12 (1.10-1.13)1.03 (1.02-1.04)0.98 (0.96-0.99)
≥ 301101737863819070.989.601.02 (1.00-1.05)1.25 (1.22-1.28)1.11 (1.08-1.14)
MI< 18.5565661682401800.324.190.96 (0.92-1.01)1.18 (1.12-1.24)1.20 (1.14-1.26)
< 23535450175694005904.074.391 (reference)1 (reference)1 (reference)
< 25410244149253112148.574.801.09 (1.07-1.12)0.97 (0.95-0.99)0.95 (0.93-0.97)
< 30602426228644583820.634.991.13 (1.11-1.16)1.04 (1.02-1.06)0.98 (0.96-1.00)
≥ 301101733893831800.524.681.07 (1.03-1.11)1.27 (1.23-1.32)1.12 (1.08-1.16)
Stroke< 18.5565661928401035.134.810.87 (0.83-0.91)1.04 (0.99-1.09)1.05 (1.00-1.10)
< 23535450222943988702.595.591 (reference)1 (reference)1 (reference)
< 25410244192803097139.886.231.11 (1.09-1.13)1.00 (0.98-1.01)0.98 (0.96-1.00)
< 30602426277704565772.036.081.09 (1.07-1.11)1.01 (0.99-1.03)0.96 (0.94-0.98)
≥ 301101734490829816.795.410.97 (0.94-1.00)1.22 (1.18-1.26)1.09 (1.05-1.12)
Death< 18.55656610755405566.2826.521.65 (1.62-1.68)1.86 (1.82-1.90)1.83 (1.79-1.87)
< 23535450660014052235.9816.291 (reference)1 (reference)1 (reference)
< 25410244424923154949.8913.470.82 (0.81-0.83)0.75 (0.74-0.76)0.76 (0.75-0.77)
< 30602426549694651464.7911.820.72 (0.71-0.73)0.71 (0.71-0.72)0.70 (0.70-0.71)
≥ 301101738427843617.339.990.62 (0.60-0.63)0.92 (0.90-0.94)0.87 (0.85-0.89)
Table 6 Multivariate cox analysis for incident cardiovascular outcome by level of waist circumference
OutcomeWC status (cm)nEvents (n)Duration, PYIR, per 1000Adjusted HR (95%CI)
Model 1
Model 2
Model 3
CVD< 80/< 75445617232233336354.366.960.64 (0.63-0.65)0.91 (0.90-0.93)0.96 (0.95-0.98)
< 85/< 80358075254922672239.669.540.87 (0.86-0.89)0.95 (0.94-0.97)0.97 (0.96-0.99)
< 90/< 85378139307092808044.8510.941 (reference)1 (reference)1 (reference)
< 95/< 90273818239912020208.2211.881.09 (1.07-1.11)1.04 (1.02-1.06)1.02 (1.00-1.04)
< 100/< 95149269139951093690.4612.801.17 (1.15-1.20)1.12 (1.10-1.14)1.07 (1.05-1.09)
≥ 100/≥ 9510994110423796802.4313.081.20 (1.18-1.23)1.26 (1.23-1.29)1.17 (1.15-1.20)
MI< 80/< 75445617110983372362.793.290.64 (0.63-0.66)0.90 (0.88-0.92)0.95 (0.93-0.98)
< 85/< 80358075121192713709.574.470.87 (0.85-0.89)0.95 (0.92-0.97)0.97 (0.94-0.99)
< 90/< 85378139146422858902.815.121 (reference)1 (reference)1 (reference)
< 95/< 90273818113792060078.545.521.08 (1.05-1.11)1.04 (1.01-1.07)1.02 (0.99-1.04)
< 100/< 9514926966651116627.755.971.17 (1.14-1.20)1.12 (1.09-1.16)1.07 (1.04-1.11)
≥ 100/≥ 951099415030813792.656.181.21 (1.18-1.25)1.28 (1.23-1.32)1.18 (1.15-1.22)
Stroke< 80/< 75445617136663362891.684.060.64 (0.62-0.65)0.93 (0.91-0.95)0.98 (0.95-1.00)
< 85/< 80358075150682703325.425.570.87 (0.85-0.89)0.96 (0.94-0.98)0.98 (0.96-1.00)
< 90/< 85378139181732846368.136.391 (reference)1 (reference)1 (reference)
< 95/< 90273818143402049514.237.001.10 (1.07-1.12)1.05 (1.03-1.07)1.03 (1.00-1.05)
< 100/< 9514926983551110933.107.521.18 (1.15-1.21)1.12 (1.09-1.15)1.07 (1.05-1.10)
≥ 100/≥ 951099416160809433.867.611.20 (1.16-1.23)1.25 (1.22-1.29)1.17 (1.13-1.20)
Death< 80/< 75445617417413401800.3912.270.88 (0.87-0.90)1.35 (1.33-1.37)1.36 (1.34-1.38)
< 85/< 80358075364352748088.0313.260.95 (0.94-0.97)1.06 (1.05-1.08)1.07 (1.06-1.09)
< 90/< 85378139404222901383.4113.931 (reference)1 (reference)1 (reference)
< 95/< 90273818316252092744.5515.111.09 (1.07-1.10)1.02 (1.01-1.04)1.01 (1.00-1.03)
< 100/< 95149269182971135942.7916.111.16 (1.14-1.18)1.08 (1.06-1.10)1.05 (1.04-1.07)
≥ 100/≥ 9510994114124827875.117.061.24 (1.21-1.26)1.30 (1.27-1.32)1.24 (1.22-1.27)