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Table 1 Demographic and clinical characteristics of subjects included in study

From: Apolipoprotein B and renal function: across-sectional study from the China health and nutrition survey

Categorical variableTotalLevel 1bLevel 2bLevel 3bLevel 4bLevel 5b
N (ratio)
All83222233(0.27)5166(0.62)754(0.09)139(0.02)30(0.00)
APO_Ba, mg/dL
 955085 (61.10)1692(75.77)2954(57.18)361(47.88)62(44.60)16(53.33)
 95 & < 1202150 (25.84)394(17.65)1483(28.71)227(30.12)41(29.50)5(16.67)
  > 1201087 (13.06)147(6.58)729(14.11)166(22.00)36(25.90)9(30.00)
Age Groups, years
 18–402298 (27.61)1318(59.03)970(18.78)8(1.06)2(1.44)0(0.00)
 40–654682 (56.26)883(39.54)3456(66.90)305(40.45)30(21.58)8(26.67)
  > 651342 (16.13)32(1.43)740(14.32)441(58.49)107(76.98)22(73.33)
Gender
 Female4444 (53.40)1001(44.83)2878(55.71)456(60.48)90(64.75)19(63.33)
 Male3878 (45.60)1232(55.17)2288(44.29)298(39.52)49(35.25)11(36.67)
Education, years
  < =62187 (26.27)482(21.59)1409(27.27)250(33.16)35(25.18)11(36.67)
  > 6 & < =124139 (49.74)1115(49.93)2540(49.17)381(50.53)89(64.03)14(46.67)
  > 12 & < =161581 (18.90)495(22.17)972(18.82)100(13.26)10(7.19)4(13.33)
  > 16415 (4.99)141(6.31)245(4.74)23(3.05)5(3.60)1(3.33)
Body Mass Index, kg/m2
  < =255906 (70.97)1675(75.01)3584(69.48)530(70.29)94(67.63)23(97.67)
  > 252416 (29.03)558(24.99)1582(30.62)224(29.71)45(32.37)7(2.33)
Region
 Rural5590 (67.17)1564(70.01)3451(66.80)471(62.47)84(60.43)20(67.67)
 Urban2732 (32.83)669(29.99)1715(33.20)283(37.53)55(39.57)10(33.33)
Hyperuricemia
 No7042 (84.60)2031(90.95)4408(85.33)529(70.16)62(44.60)12(40.00)
 Yes1280 (15.40)202(9.05)758(14.67)225(29.84)77(55.40)18(60.00)
Diabetes
 No7528 (90.46)2162(96.82)4679(90.57)577(76.53)89(64.03)21(70.00)
 Yes794 (9.54)71(3.18)487(9.43)177(23.47)50(35.97)9(30.00)
Hypertension
 No7249 (87.11)1948(87.24)4484(86.80)669(88.73)119(85.61)29(96.67)
 Yes1073 (12.89)285(12.76)682(13.20)85(11.27)20(14.39)1(3.33)
Anemia
 Yes508 (13.67)126(5.64)272(5.27)78(10.34)14(6.72)18(60.00)
 No7814 (86.33)2107(94.36)4894(94.73)676(89.66)125(93.28)12(40.00)
Smoking
 No5761 (69.23)1474(66.01)3603(52.50)548(72.68)111(79.86)25(83.33)
 Yes2561 (30.77)759(33.99)1563(47.50)206(27.32)28(20.14)5(16.67)
Alcohol Drinking
 No5621 (67.54)1363(61.04)3520(68.14)586(77.72)122(87.77)30(1.00)
 Yes2701 (32.46)870(38.96)1646(31.86)168(22.28)17(12.23)0(0.00)
Tea Drinking
 No5399 (64.88)1555(69.64)3291(63.70)449(59.55)85(61.15)19(63.33)
 Yes2923 (35.12)678(30.36)1875(36.30)305(40.45)54(38.85)11(36.67)
Sleeping Duration, hours/ day
  < =72494 (29.97)519(23.24)1660(32.13)263(34.88)45(32.37)7(23.33)
  > 7 & < =94910 (59.00)1436(64.31)3026(58.58)368(48.81)64(46.04)16(53.33)
  > 9918 (11.03)278(12.45)480(9.29)123(16.31)30(21.58)7(23.33)
Albumin, g/dL
  < =3544 (0.53)12(0.54)17(0.33)9(1.19)4(2.88)2(6.67)
  > 35 & < =517948 (95.51)2068(92.61)4991(96.61)731(96.95)131(94.24)27(90.00)
  > 51330 (3.97)153(6.85)158(3.06)14(1.86)4(2.88)1(3.33)
Triglycerides
 Ideal5700 (68.49)1608(72.01)3496(67.67)488(64.72)84(60.43)24(80.00)
 Borderline high939 (11.28)207(9.27)606(11.73)97(12.86)28(20.14)1(3.33)
 High1495 (17.96)350(15.67)954(18.47)161(21.35)25(17.99)5(16.67)
 Very high188 (2.26)68(3.05)110(2.13)8(1.06)2(1.44)0(0.00)
Total Cholesterol
 Desirable5564 (66.86)1766(79.09)3305(63.98)399(52.92)76(54.68)18(60.00)
 Borderline high1976 (23.74)337(15.09)1378(26.67)223(29.58)30(21.58)8(26.67)
 High782 (9.40)130(5.82)483(9.35)132(17.51)33(23.74)4(13.33)
HDLa
 Low2095 (25.17)534(23.91)1317(25.49)198(26.26)36(25.90)10(33.33)
 Normal3533 (42.45)992(44.42)2195(42.49)297(39.39)55(39.57)12(40.00)
 High2694 (32.37)707(31.66)1654(32.02)277(36.74)48(34.53)8(26.67)
LDLa
 Optimal2992 (35.95)1132(50.69)1642(31.78)181(24.01)28(20.14)9(30.00)
 Near optimal2752 (33.07)685(30.68)1771(34.28)239(31.70)50(35.97)7(23.34)
 Borderline high1699 (20.42)300(13.43)1170(22.65)189(25.07)30(21.58)10(33.33)
 High624 (7.50)79(3.54)425(8.23)101(13.40)18(12.95)1(3.33)
 Very high255 (3.06)37(0.15)158(3.06)44(5.84)13(9.35)3(10.00)
Urea Nitrogen, mg/dL
  < =7.17019 (84.34)2032(91.00)4370(84.59)554(73.47)60(43.17)3(10.00)
  > 7.11303 (15.66)201(9.00)796(15.41)200(26.53)79(56.83)27(90.00)
Continuous variableMean (SD)
Screen Time, hours/day2.19 (1.66)2(1.69)2(1.65)2(1.60)2(1.46)2(1.89)
Water Drinking, cups/day3.45 (1.82)3(1.81)3(1.89)3(1.41)4(1.73)3(1.08)
Fat Intake, g/day74.97 (41.19)74(44.28)76(40.96)72(34.13)69(32.02)73(37.08)
Protein Intake, g/day66.00 (22.96)69(24.04)66(22.58)60(20.97)54(17.64)54(21.99)
Caloric Intake, kcal/day885.37 (306.41)941(318.17)881(298.28)789(293.42)719(264.65)731(292.00)
  1. Level 1: GFR > 90 ml/min/1.73m2;
  2. Level 2: 60 ml/min/1.73m2 < GFR < =90 ml/min/1.73m2;
  3. Level 3: 45 ml/min/1.73m2 < GFR < =60 ml/min/1.73m2;
  4. Level 4: 45 ml/min/1.73m2 < GFR < =30 ml/min/1.73m2;
  5. Level 5: < 30 ml/min/1.73m2
  6. aAPO_B apo-lipoprotein B, HDL high-density lipoprotein, LDL low-density lipoprotein
  7. b Classification follow the K/DOQI Clinical Practice Guidelines for Chronic Kidney Disease,