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Table 1 Baseline characteristics of clinical information from NHANES

From: Remnant cholesterol inflammatory index and its association with all-cause and cause-specific mortality in middle-aged and elderly populations: evidence from US and Chinese national population surveys

 

Total (n = 7,565)

Q1 (n = 1,770)

Q2 (n = 1,885)

Q3 (n = 1,933)

Q4 (n = 1,977)

P

Age, years

59.95 (10.44)

58.04 (8.97)

60.16 (9.84)

60.97 (9.38)

60.63 (10.97)

 < 0.001

Female

3848 (53.28)

801 (48.19)

871 (48.36)

993 (52.88)

1183 (63.64)

 < 0.001

Race

     

 < 0.001

Mexican American

1347 (4.55)

204 (2.85)

338 (4.61)

383 (5.07)

422 (5.69)

 

Other Hispanic

485 (4.16)

111 (3.29)

113 (3.59)

140 (5.26)

121 (4.48)

 

Non-Hispanic White

4146 (77.84)

1023 (77.80)

1068 (80.32)

1027 (76.86)

1028 (76.38)

 

Non-Hispanic Black

1324 (9.04)

329 (8.68)

308 (8.41)

328 (8.89)

359 (10.17)

 

Other Race

263 (4.41)

103 (7.38)

58 (3.07)

55 (3.92)

47 (3.28)

 

Education

     

 < 0.001

Less than high school

2548 (21.56)

438 (14.68)

619 (21.36)

725 (22.79)

766 (27.43)

 

High school graduate or higher

5000 (78.44)

1331 (85.32)

1264 (78.64)

1203 (77.21)

1202 (72.57)

 

Marital status

     

 < 0.001

Not married or living with a partner

2761 (30.61)

574 (25.91)

657 (29.66)

713 (30.84)

817 (36.05)

 

Married or living with a partner

4705 (69.39)

1179 (74.09)

1202 (70.34)

1199 (69.16)

1125 (63.95)

 

Drinking

4754 (69.74)

1196 (75.02)

1221 (71.38)

1215 (67.79)

1122 (64.76)

 < 0.001

Smoking

3956 (53.60)

848 (49.83)

970 (52.35)

1040 (52.44)

1098 (59.77)

 < 0.001

Dyslipidemia

6258 (83.28)

1291 (72.81)

1528 (82.72)

1690 (87.57)

1749 (89.96)

 < 0.001

Hypertension

4438 (52.12)

860 (39.38)

1095 (51.20)

1180 (55.50)

1303 (62.37)

 < 0.001

Chronic Kidney Disease

2028 (20.44)

361 (14.67)

481 (18.33)

551 (21.66)

635 (27.09)

 < 0.001

Diabetes mellitus

1886 (18.53)

328 (12.69)

410 (15.63)

520 (20.41)

628 (25.38)

 < 0.001

Cancer

1075 (13.91)

242 (12.57)

255 (12.92)

261 (13.66)

317 (16.48)

0.013

Coronary Heart Disease

528 (6.10)

105 (4.93)

135 (6.53)

148 (6.57)

140 (6.36)

0.346

Stroke

445 (4.32)

82 (2.85)

97 (3.58)

112 (4.56)

154 (6.28)

 < 0.001

SBP, mmHg

128.00 (116.00, 142.00)

122.00 (112.00, 136.00)

126.00 (116.00, 140.00)

130.00 (118.00, 144.00)

132.00 (118.00, 144.00)

 < 0.001

BMI, kg/m^2

27.65 (24.27, 31.70)

24.70 (22.15, 27.67)

27.19 (24.40, 30.49)

28.78 (25.52, 32.57)

30.82 (26.70, 36.21)

 < 0.001

TC, mg/dL

204.00 (180.00, 231.00)

200.00 (177.00, 224.00)

203.00 (178.00, 230.00)

206.00 (183.00, 234.00)

208.00 (184.00, 237.00)

 < 0.001

HDL-C, mg/dL

52.00 (43.00, 64.00)

59.00 (49.00, 71.00)

52.00 (44.00, 65.00)

49.00 (42.00, 60.00)

47.00 (40.00, 58.00)

 < 0.001

LDL-C, mg/dL

122.00 (100.00, 146.00)

118.00 (98.00, 141.00)

123.00 (99.00, 145.00)

123.00 (103.00, 151.00)

124.00 (100.00, 148.00)

 < 0.001

TG, mg/dL

123.00 (89.00, 174.00)

88.00 (67.00, 113.00)

115.00 (86.00, 159.00)

140.00 (106.00, 187.00)

164.00 (125.00, 227.00)

 < 0.001

WBC, 10^3/μL

6.71 (2.32)

5.97 (1.40)

6.45 (2.03)

6.79 (1.76)

7.63 (2.37)

 < 0.001

Platelets, 10^3/μL

258.57 (82.34)

242.68 (61.99)

249.60 (58.47)

261.87 (51.59)

280.02 (96.63)

 < 0.001

eGFR, mL/min/1.73 m2

92.42 (76.55, 104.90)

94.21 (80.65, 105.76)

92.16 (77.22, 106.68)

92.35 (75.75, 104.46)

90.50 (73.14, 104.64)

 < 0.001

Uric acid, mg/dL

5.50 (4.60, 6.50)

5.00 (4.20, 5.90)

5.50 (4.50, 6.40)

5.70 (4.70, 6.60)

5.80 (4.90, 6.80)

 < 0.001

HbA1c, %

5.50 (5.30, 5.80)

5.40 (5.20, 5.70)

5.50 (5.20, 5.70)

5.50 (5.30, 5.90)

5.60 (5.30, 6.00)

 < 0.001

FPG, mg/dL

100.50 (93.50, 110.90)

97.20 (92.00, 105.10)

100.00 (93.90, 109.60)

101.10 (94.40, 111.60)

103.80 (95.40, 115.90)

 < 0.001

CRP, mg/dL

0.23 (0.10, 0.51)

0.06 (0.04, 0.09)

0.16 (0.12, 0.22)

0.32 (0.24, 0.44)

0.86 (0.58, 1.37)

 < 0.001

RC, mg/dL

25.00 (18.00, 35.00)

18.00 (13.00, 23.00)

23.00 (17.00, 32.00)

28.00 (21.00, 38.00)

33.00 (25.00, 45.00)

 < 0.001

RCII

5.76 (2.21, 14.49)

1.08 (0.65, 1.65)

3.64 (2.88, 4.60)

8.99 (7.14, 11.31)

27.14 (19.00, 41.60)

 < 0.001

lnRCII

1.71 (1.74)

− 0.08 (0.56)

1.29 (0.29)

2.19 (0.29)

3.42 (0.59)

 < 0.001

All-cause deaths

2698 (30.62)

502 (21.21)

641 (28.44)

722 (34.12)

833 (38.67)

 < 0.001

CVD deaths

860 (9.39)

165 (6.26)

219 (9.45)

216 (10.30)

260 (11.54)

 < 0.001

Cancer deaths

613 (7.19)

108 (5.38)

150 (6.96)

166 (7.61)

189 (8.80)

0.017

  1. Abbreviations: BMI body mass index, CRP C-reactive protein, CVD cardiovascular disease, FPG fasting plasma glucose, HbA1c glycated hemoglobin A1c, HDL-C high-density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, RC remnant cholesterol, RCII remnant cholesterol inflammatory index, SBP systolic blood pressure, TC total cholesterol, TG triglyceride, WBC white blood cell
  2. Values are presented as mean (SD) or median (IQR) for continuous variables and as frequency (weighted percentage) for categorical variables
  3. Participants were grouped by lnRCII quartiles: Q1: lnRCII < 0.79, Q2: 0.79 ≤ lnRCII < 1.75; Q3: 1.75 ≤ lnRCII < 2.67, Q4: lnRCII ≥ 2.67
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Lipids in Health and Disease

ISSN: 1476-511X