Table 1. Characteristics of the study population by triglyceride strata.
| Number (Percentage) or Median (IQR) * | ||||
|---|---|---|---|---|
| Total | TG < 400 mg/dL | TG ≥ 400 mg/dL | ||
| Variable | (n = 5,790) | (n = 5,642) | (n = 148) | p-value† |
| Age, years | 45 (33–57) | 45 (33–57) | 48 (39–57) | 0.052 |
| Sex, n (%) | < 0.001 | |||
| Male | 2,841 (49.1) | 2,723 (48.3) | 118 (79.7) | |
| Female | 2,949 (50.9) | 2,919 (51.7) | 30 (20.3) | |
| Cholesterol, mg/dL | ||||
| Total | 184 (162–209) | 184 (162–209) | 217 (191–244) | < 0.001 |
| HDL-C | 47 (40–55) | 48 (41–55) | 37 (33–42) | < 0.001 |
| Non-HDL-C | 136 (113–162) | 135 (113–161) | 178 (154–203) | < 0.001 |
| Direct LDL-C | 110 (90–133) | 111 (91–133) | 96 (75–117) | < 0.001 |
| VLDL-C | 23 (17–31) | 22 (17–30) | 74 (63–99) | < 0.001 |
| Triglycerides, mg/dL | 117 (72–163) | 106 (71–157) | 505 (432–635) | < 0.001 |
| TG:VLDL-C ratio | 4.9 (3.8–6.2) | 4.9 (3.7–6.1) | 6.8 (6.1–7.9) | < 0.001 |
| VLDL-C:TG ratio | 0.20 (0.16–0.27) | 0.21 (0.16–0.27) | 0.15 (75–117) | < 0.001 |
IQR indicates interquartile range; TG, triglyceride; HDL-C, high-density lipoprotein cholesterol; Direct LDL-C, low-density lipoprotein cholesterol measured by the enzymatic homogeneous assay; VLDL-C, very low-density lipoprotein cholesterol; TG:VLDL-C ratio, ratio of TG to VLDL-C; VLDL-C:TG ratio, ratio of VLDL-C to TG.
* Data are expressed as medians (IQR) for continuous variables and frequencies (percentages) for categorical variables.
† Statistical significance was assessed using Fisher’s exact test or median test.