Research Article

Relationship between Red Blood Cell Indices (MCV, MCH, and MCHC) and Major Adverse Cardiovascular Events in Anemic and Nonanemic Patients with Acute Coronary Syndrome

Table 2

Multivariate Cox regression analysis for MACEs of MCV, MCH, and MCHC.

Anemic groupNonanemic group
UnadjustedUnadjustedModel 1Model 2
HR95% CI valueHR95% CI valueHR95% CI valueHR95% CI value

MCV
Tertile 11.0 (ref)1.0 (ref)1.0 (ref)1.0 (ref)
Tertile 20.6050.192-1.9070.3911.0750.464-2.4890.8661.1270.479-2.6480.7851.2530.521-3.0110.615
Tertile 31.0390.376-2.8700.9412.3471.121-4.9130.0242.4191.103-5.3050.0282.7431.184-6.3550.019
for trend0.5970.0220.0330.029
MCH
Tertile 11.0 (ref)1.0 (ref)1.0 (ref)1.0 (ref)
Tertile 20.7550.243-2.3430.6261.1340.497-2.5870.7651.2680.531-3.0260.5931.4770.607-3.5930.390
Tertile 31.2040.417-3.4730.7322.6261.249-5.5200.0113.5221.475-8.4100.0054.5301.808-11.3480.001
for trend0.6880.0100.0040.001
MCHC
Tertile 11.0 (ref)1.0 (ref)1.0 (ref)1.0 (ref)
Tertile 21.6940.585-4.9060.3320.9250.471-1.8150.8200.8950.441-1.8190.7600.8710.311-2.4410.793
Tertile 31.1480.370-3.5620.8110.8120.384-1.7190.5860.8150.374-1.7720.6050.7620.135-4.2880.758
for trend0.5910.8620.8730.953

Model 1: adjusted for age, male, diabetes, hypertension, smoking, and LVEF. Model 2: further adjusted for RBC, hemoglobin, HCT, and RDW-CV. 95% CI: 95% confidence interval; HCT: hematocrit value; HR: hazard ratio; LVEF: left ventricular ejection fraction; MACEs: major adverse cardiovascular events; MCH: mean corpuscular hemoglobin; MCHC: mean corpuscular hemoglobin concentration; MCV: mean corpuscular volume; RBC: red blood cell; RDW-CV: red cell volume distribution width-coefficient of variation; ref: reference group.