Table 2. Postprandial lipid changes in the 41 study subjects.
| Analyte (Units) | 6:30 (fasting) | 9:00 (2 hours postprandial) | 12:00 (0.5 hours postprandial) | 15:00 (3.5 hours postprandial) | 18:30 (1 hour postprandial) |
|---|---|---|---|---|---|
| Triglyceride (mmol/L) | 1.28 ± 0.7 | 1.38 ± 0.68 | 1.49 ± 0.73∥ | 1.43 ± 0.74 | 1.41 ± 0.65 |
| Concentration change* (mmol/L) | N/A | 0.10 ± 0.52 | 0.21 ± 0.65 | 0.15 ± 0.53 | 0.13 ± 0.58 |
| Change rate† (%) | N/A | 14.2 ± 31.2 | 27.9 ± 56.4 | 20.8 ± 45.1 | 23.4 ± 55.3 |
| Increased/decreased cases‡ | N/A | 29/12 | 26/15 | 24/17 | 29/12 |
| P | N/A | 0.219 | 0.048 | 0.080 | 0.165 |
| Total cholesterol (mmol/L) | 4.18 ± 0.73 | 4.09 ± 0.74¶ | 4.03 ± 0.7¶ | 4.07 ± 0.72∥ | 4.15 ± 0.76 |
| Concentration change* (mmol/L) | N/A | −0.08 ± 0.18 | −0.15 ± 0.23 | −0.1 ± 0.31 | −0.03 ± 0.25 |
| Change rate† (%) | N/A | −2.0 ± 4.3 | −3.3 ± 5.4 | −2.2 ± 8.0 | −0.8 ± 6.2 |
| Increased/decreased cases‡ | N/A | 13/28 | 12/29 | 13/28 | 13/24 |
| P | N/A | 0.005 | < 0.001 | 0.037 | 0.439 |
| LDL-C (mmol/L) | 2.35±0.62 | 2.28±0.61¶ | 2.24±0.62¶ | 2.28±0.61∥ | 2.32±0.69 |
| Concentration change* (mmol/L) | N/A | −0.07±0.16 | −0.11±0.18 | −0.07±0.17 | −0.02±0.22 |
| Change rate† (%) | N/A | −2.9±9.1 | −4.4±10.3 | −2.6±8.7 | −0.9±11.9 |
| Increased/decreased cases‡ | N/A | 11/30 | 8/33 | 12/29 | 15/26 |
| P | N/A | 0.005 | <0.001 | 0.012 | 0.534 |
| LDL-C (calculated)§ (mmol/L) | 2.39±0.59 | 2.32±0.60¶ | 2.23±0.62∥ | 2.29±0.55∥ | 2.33±0.63 |
| Concentration change* (mmol/L) | N/A | −0.08±0.24 | −0.17±0.33 | −0.11±0.35 | −0.07±0.35 |
| Change rate† (%) | N/A | −3.0±10.4 | −6.6±15.2 | −3.7±10.6 | −2.3±14.8 |
| Increased/decreased cases‡ | N/A | 13/28 | 12/29 | 12/29 | 14/27 |
| P | N/A | 0.004 | 0.023 | 0.041 | 0.569 |
| HDL-C (mmol/L) | 1.19±0.28 | 1.15±0.25¶ | 1.14±0.25¶ | 1.15±0.29∥ | 1.19±0.27 |
| Concentration change* (mmol/L) | N/A | −0.05±0.69 | −0.05±0.08 | −0.04±0.1 | 0.00±0.1 |
| Change rate† (%) | N/A | −3.5±5.1 | −4.0±7.3 | −2.8±11.2 | 0.2±9.2 |
| Increased/decreased cases‡ | N/A | 10/31 | 7/34 | 11/30 | 20/21 |
| P | N/A | <0.001 | <0.001 | 0.022 | 0.874 |
| Apolipoprotein A1 (g/L) | 1.62±0.22 | 1.59±0.23¶ | 1.58±0.22¶ | 1.60±0.23 | 1.62±0.23 |
| Concentration change* (mmol/L) | N/A | −0.03±0.06 | −0.04±0.07 | −0.02±0.11 | 0.01±0.08 |
| Change rate† (%) | N/A | −1.9±3.7 | −2.3±3.9 | −0.8±7.1 | 0.4±4.4 |
| Increased/decreased cases‡ | N/A | 14/27 | 13/28 | 18/23 | 23/18 |
| P | N/A | 0.004 | 0.001 | 0.362 | 0.577 |
| Apolipoprotein B (g/L) | 0.68±0.14 | 0.66±0.13¶ | 0.66±0.14¶ | 0.67±0.14∥ | 0.68±0.15 |
| Concentration change* (mmol/L) | N/A | −0.02±0.04 | −0.03±0.04 | −0.02±0.04 | −0.01±0.04 |
| Change rate† (%) | N/A | −3.4±5.1 | −3.7±5.2 | −2.1±5.6 | −0.7±5.8 |
| Increased/decreased cases‡ | N/A | 13/28 | 10/31 | 16/25 | 16/25 |
| P | N/A | <0.001 | <0.001 | 0.018 | 0.414 |
Data are presented as mean±standard deviation or number.
*Concentration change refers to the current postprandial lipid concentration minus the fasting concentration; †Change rate was calculated using the formula [(postprandial concentration minus fasting concentration)/fasting concentration]×100%; ‡Increased cases refer to subjects whose postprandial test results were higher than the fasting results, while decreased cases refer to subjects whose postprandial test results were lower than the fasting results; §LDL-C (calculated) was determined using the Friedewald equation: LDL-C=TC−HDL-C−TG/2.2; ∥P<0.05, ¶P<0.01, paired sample t-test.
Abbreviations: N/A, not available; LDL-C, low-density lipoprotein cholesterol; HDL-C, high-density lipoprotein cholesterol.