| CI | Confidence interval |
| HDL-c | high-density lipoprotein cholesterol |
| LDL-c | low-density lipoprotein cholesterol |
| MEC | more egg consumption |
| MD | mean difference |
| NSR | nonspecific responders |
| PRISMA | preferred reporting items for systematic reviews and meta-analyses |
| RCT | randomized clinical trial |
| SD | standard deviation |
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