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Table 1 Prevalence of metabolic syndrome (MetS) according to fasting plasma glucose or HbA1c or both

From: Impact of HbA1c criterion on the definition of glycemic component of the metabolic syndrome: the China health and nutrition survey 2009

  No MetS FPG-based diagnosis of MetS HbA1c-based diagnosis of MetS MetS by both FPG and HbA1c ҝ coefficient*
ALL 5633 (73.7) 368 (4.8) 872 (11.4) 768 (10.1) 0.458
Sex      
 Men 2731 (75.3) 179 (5.0) 353 (9.7) 361 (10.0) 0.489
 Women 2902 (72.3) 189 (4.7) 519 (12.9) 407 (10.1) 0.432
Age, y      
 18-44 2434 (86.6) 88 (3.1) 176 (6.3) 113 (4.0) 0.412
 45-64 2407 (68.4) 214 (6.1) 475 (13.5) 423 (12.0) 0.431
 ≥ 65 792 (60.5) 66 (5.0) 221 (16.8) 232 (17.7) 0.474
BMI categories      
 < 25 kg/m2 4462 (83.1) 189 (3.5) 409 (7.6) 310 (5.8) 0.449
 25-30 kg/m2 1056 (53.9) 148 (7.6) 395 (20.2) 359 (18.3) 0.376
 ≥ 30 kg/m2 115 (36.8) 31 (9.9) 68 (21.7) 99 (31.6) 0.375
WC categories      
 < 85/80 cm 3507 (93.6) 44 (1.2) 119 (3.2) 72 (2.0) 0.448
 ≥ 85/80 cm 2126 (54.5) 324 (8.3) 753 (19.3) 696 (17.9) 0.371
BP status      
 < 120/80 mmHg 2159 (91.5) 46 (2.0) 101 (4.3) 53 (2.2) 0.388
 120/80-140/90 mmHg 2532 (75.9) 150 (4.5) 346 (10.4) 307 (9.2) 0.467
 ≥140/90 mmHg 942 (48.4) 172 (8.8) 425 (21.8) 408 (21.0) 0.349
Settings      
 Urban 1785 (72.8) 146 (5.9) 287 (11.7) 236 (9.6) 0.412
 Rural 3848 (74.2) 222 (4.3) 585 (11.3) 532 (10.2) 0.478
Regions      
 Southern 3438 (78.9) 224 (5.1) 392 (9.0) 304 (7.0) 0.416
 Northern 2195 (66.9) 144 (4.4) 480 (14.6) 464 (14.1) 0.481
Education      
 Primary or below 2367 (69.5) 171 (5.0) 471 (13.8) 396 (11.7) 0.439
 Less than high school 1900 (76.9) 121 (4.9) 232 (9.3) 220 (8.9) 0.472
 High school or above 1366 (77.5) 76 (4.3) 169 (9.6) 152 (8.6) 0.474
  1. Data are numbers (percentages).
  2. *An agreement between FPG- and HbA1c- based identification of MetS.
  3. FPG, fasting plasma glucose; BMI, body mass index; WC, waist circumference; BP, blood pressure.