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. 2016 Dec 19;32(2):249–256. doi: 10.3346/jkms.2017.32.2.249

Table 1. Prevalence of anemia in various conditions.

Characteristics Anemia (n = 987) Total (n = 2,198) P value
Gender < 0.001
 Female 443 (51.8) 856
 Male 544 (40.5) 1,342
CKD stage < 0.001
 1 26 (10.0) 259
 2 65 (15.9) 410
 3a 130 (32.8) 396
 3b 221 (46.6) 474
 4 407 (78.9) 516
 5 138 (96.5) 143
Causes of CKD < 0.001
 DN 387 (75.9) 510
 Hypertensive nephropathy 162 (39.9) 406
 Glomerulonephritis 274 (34.9) 785
 Polycystic kidney disease 99 (27.3) 362
 Miscellaneous 65 (48.1) 135
Work status < 0.001
 Employed 442 (44.8) 1,211
 Unemployed 542 (55.2) 981
 Unknown 3 (50.0) 6
Marriage < 0.001
 Married 824 (44.8) 1,841
 Unmarried 73 (34.3) 213
 Divorced or widowed 86 (62.8) 137
 Unknown 4 (57.1) 7
Economic status, 1,000 KRW/mon < 0.001
 High (> 4,500) 168 (34.5) 487
 Middle (1,500–4,500) 522 (45.3) 1,152
 Low (< 1,500) 552 (55.2) 496
 Unknown 23 (36.5) 63
Education < 0.001
 Graduated elementary school or less 162 (60.7) 267
 Graduated middle school 142 (54.8) 259
 Graduated high school 354 (46.0) 769
 Graduated college or more 322 (36.1) 893
 Unknown 7 (70.0) 10
Smoking < 0.001
 Never 563 (47.5) 1,185
 Former 310 (46.4) 668
 Current 114 (33.1) 344
 Unknown 1 (100.0) 1
Modified Charlson comorbidity index < 0.001
 Low (≤ 3) 334 (29.0) 1,150
 Moderate (4–5) 372 (57.9) 642
 High (6–7) 235 (68.5) 343
 Very high (≥ 8) 46 (73.0) 63

CKD = chronic kidney disease, DN = diabetic nephropathy, KRW = Korean won.