Table 2.
Results of mediation analysis: direct, indirect and total effects of NLR on CVEs mediated by diabetes mellitus, creatinine, and hypertension via pathway A.
| Path | Effect | SE | z | P-value | Bootstrapping | Odds Ratio | 95% CI | Proportion mediated (%) |
|---|---|---|---|---|---|---|---|---|
| Bias Corrected 95%CI | ||||||||
| Direct effect | 0.2246 | 0.0535 | 4.20 | <0.001 | 0.1235, 0.3306 | 1.2518 | 1.1315, 1.3918 | 44.73 |
| Indirect effects | ||||||||
| Overall | 0.2775 | 0.1344 | 2.06 | 0.039 | 0.0505, 0.5864 | 1.3198 | 1.0141, 1.7176 | 55.27 |
| Through DM | 0.1030 | 0.0402 | 2.56 | 0.010 | 0.0423, 0.2127 | 1.1085 | 1.0199, 1.1971 | 20.51 |
| Through Cr | 0.0248 | 0.0083 | 3.00 | 0.003 | 0.0111, 0.0443 | 1.0251 | 1.0084, 1.0418 | 4.94 |
| Through HT1 | 0.0400 | 0.0759 | 0.53 | 0.598 | −0.1144, 0.1842 | 1.0409 | 0.8849, 1.1968 | 7.97 |
| Through HT2 | 0.1097 | 0.0427 | 2.56 | 0.010 | 0.0438, 0.2122 | 1.1159 | 1.0209, 1.2108 | 21.85 |
| One mediator model | ||||||||
| NLR→DM→CVEs | 0.0564 | 0.0250 | 2.25 | 0.024 | 0.0203, 0.1209 | 1.0580 | 1.0058, 1.1102 | 11.23 |
| NLR→ Cr →CVEs | 0.0138 | 0.0041 | 3.37 | 0.001 | 0.0060, 0.0219 | 1.0139 | 1.0058, 1.0220 | 2.75 |
| NLR→HT1→CVEs | 0.0315 | 0.0605 | 0.52 | 0.602 | −0.0886, 0.1478 | 1.0320 | 0.9089, 1.1551 | 6.27 |
| NLR→ HT2→CVEs | 0.0681 | 0.0306 | 2.23 | 0.026 | 0.0227, 0.1477 | 1.0705 | 1.0054, 1.1355 | 13.56 |
| Two mediators model | ||||||||
| NLR→DM→Cr → CVEs | 0.0031 | 0.0014 | 2.19 | 0.028 | 0.0012, 0.0069 | 1.0031 | 1.0003, 1.0058 | 0.62 |
| NLR→DM→HT1→CVEs | 0.0072 | 0.0142 | 0.51 | 0.612 | −0.0180, 0.0397 | 1.0072 | 0.9791, 1.0354 | 1.43 |
| NLR→DM→HT2→CVEs | 0.0349 | 0.0161 | 2.16 | 0.031 | 0.0129, 0.0791 | 1.0355 | 1.0025, 1.0685 | 6.95 |
| NLR→Cr→HT1→CVEs | 0.0011 | 0.0023 | 0.45 | 0.649 | −0.0027, 0.0076 | 1.0011 | 0.9965, 1.0056 | 0.22 |
| NLR→Cr→HT2 →CVEs | 0.0054 | 0.0033 | 1.66 | 0.097 | 0.0015, 0.0151 | 1.0054 | 0.9989, 1.0119 | 1.08 |
| Three mediators model | ||||||||
| NLR→DM→Cr→HT1 →CVEs | 0.0002 | 0.0005 | 0.46 | 0.646 | −0.0006, 0.0016 | 1.0002 | 0.9992, 1.0012 | 0.04 |
| NLR→DM→Cr→HT2 →CVEs | 0.0012 | 0.0007 | 1.64 | 0.101 | 0.0004, 0.0035 | 1.0012 | 0.9998, 1.0027 | 0.24 |
| Total effect | 0.5021 | 0.1388 | 3.62 | <0.001 | 0.2480, 0.7941 | 1.6522 | 0.2301, 0.7741 | 100 |
CI, confidence interval; NLR, neutrophil-lymphocyte ratio; CVEs, cardiovascular events; DM, diabetes mellitus; Cr, creatinine; HT1, well-controlled hypertension; HT2, poorly-controlled hypertension.