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Table 1 Baseline characteristics of all participants by RLP-C quartile

From: Associations between remnant lipoprotein cholesterol and central systolic blood pressure in a Chinese community-based population: a cross-sectional study

Variables Total RLP-C, mmol/L P Value
Q1 (< 0.39) Q2 (0.39–< 0.54) Q3 (0.54–< 0.73) Q4 (≥0.73)
n 5173 1269 1283 1318 1303  
Age, y 55.0 ± 8.5 54.2 ± 8.8 55.3 ± 9.1 55.5 ± 8.2 55.0 ± 7.9 < 0.001
Male, n (%) 1845 (35.7%) 365 (28.8%) 444 (34.6%) 476 (36.1%) 560 (43.0%) < 0.001
BMI, kg/m2 25.5 ± 3.3 24.0 ± 3.0 25.3 ± 3.2 26.1 ± 3.2 26.7 ± 3.1 < 0.001
eGFR, mL/min·1.73m2 96.8 ± 12.0 98.7 ± 11.4 96.9 ± 11.9 96.1 ± 11.9 95.4 ± 12.5 < 0.001
cSBP, mmHg 129.7 ± 17.3 126.1 ± 16.8 129.0 ± 17.3 130.2 ± 16.8 133.2 ± 17.4 < 0.001
TC, mmol/L 5.4 ± 1.0 4.8 ± 0.8 5.1 ± 0.8 5.5 ± 0.9 6.0 ± 1.1 < 0.001
TG, mmol/L 1.2 (0.9–1.8) 0.8 (0.6–0.9) 1.1 (0.9–1.3) 1.4 (1.2–1.7) 2.3 (1.8–3.1) < 0.001
HDL-C, mmol/L 1.5 ± 0.4 1.8 ± 0.4 1.5 ± 0.3 1.4 ± 0.3 1.2 ± 0.3 < 0.001
LDL-C, mmol/L 3.3 ± 0.8 2.7 ± 0.6 3.2 ± 0.6 3.5 ± 0.7 3.7 ± 1.0 < 0.001
RLP-C, mmol/L 0.5 (0.4–0.7) 0.3 (0.2–0.4) 0.5 (0.4–0.5) 0.6 (0.6–0.7) 0.9 (0.8–1.1) < 0.001
Non-HDL-C, mmol/L 3.9 ± 1.0 3.0 ± 0.6 3.6 ± 0.6 4.1 ± 0.7 4.8 ± 1.0 < 0.001
Smoking, n (%) 1038 (20.1%) 163 (12.8%) 219 (17.1%) 275 (20.9%) 381 (29.2%) < 0.001
Drinking, n (%) 1255 (24.3%) 250 (19.7%) 299 (23.3%) 317 (24.1%) 389 (29.9%) < 0.001
Prevalence of cardiovascular disease, n (%)
 Diabetes mellitus 953 (18.4%) 159 (12.5%) 208 (16.2%) 253 (19.2%) 333 (25.6%) < 0.001
 Self-reported Myocardial Infarction 21 (0.4%) 0 (0.0%) 7 (0.6%) 7(0.5%) 7 (0.5%) 0.077
 Self-reported Stroke history 97 (1.9%) 21 (1.7%) 30 (2.3%) 28 (2.1%) 18 (1.4%) 0.261
 Hypertension 1342 (25.9%) 237 (18.7%) 311 (24.2%) 355 (26.9%) 439 (33.7%) < 0.001
 Antidiabetic medication use 325 (6.3%) 60 (4.7%) 76 (5.9%) 88 (6.7%) 101 (7.8%) 0.013
  1. Data are presented as mean ± standard deviation for normally distributed continuous variables, median (interquartile range) for non-normally distributed continuous variables, and number (percentage) for dichotomous variables
  2. Abbreviations: BMI body mass index, eGFR estimated glomerular filtration rate, cSBP central systolic blood pressure, TC total cholesterol, TG triglyceride, HDL-C high–density lipoprotein cholesterol, LDL-C low-density lipoprotein cholesterol, RLP-C remnant lipoprotein cholesterol, non-HDL-C non-high-density lipoprotein cholesterol