Dairy Consumption and Premature Coronary Artery Disease Onset: Iran Premature Coronary Artery Disease (IPAD) Study Insights

Overview

Journal Sci Rep

Specialty Science

Date 2025 Jan 2

PMID 39747392

Authors

Noushin Mohammadifard

Ali Asadi

Ehsan Zarepur

Mohammad Hossein Paknahad

Alireza Khosravi

Razieh Hassannejad

Mohammad Kermani-Alghoraishi

Nizal Sarrafzadegan

Affiliations

Soon will be listed here.

Abstract

Evidence has argued about the association between dairy intake and premature coronary artery disease (PCAD) development aimed to be discussed in this study. This case-control study was conducted on 813 individuals with PCAD and 471 healthy controls. The dairy intake of participants was assessed by a validated semi-quantitative food frequency questionnaire. Binary and ordinal logistic regression was applied to determine the association of dairy intake with PCAD and its severity, respectively. Compared to the first quartile, the highest quartile of total dairy consumption was associated with an increased risk of PCAD [Odds ratio (OR):1.56; 95% confidence interval (95%CI): 1.13, 2.14; P = 0.008] in the crude model. It was strengthened after full adjustment [OR: 2.44, 95% CI; 1.50,3.97; P < 0.001]. Both low-fat and high-fat dairy intake revealed no association with the risk of PCAD in the crude model. However, in the fully adjusted model, respectively highest quartile of high-fat and low-fat dairy intake had a relationship with a higher risk of SCAD. [(OR:1.68; 95%CI: 1.05,2.69; P-value for trend = 0.011) and (OR:1.99; 95%CI: 1.20,3.27; P-value for trend = 0.005). After adjustment for potential confounders, the highest amount of intake of high-fat dairy was related to increased severity of PCAD (OR:1.84; 95%CI: 1.27,2.68), but not for total and low-fat dairy intake (OR:0.98; 95%CI: 0.67,1.44 and OR: 0.74; 0.51,1.07; respectively). Dairy consumption regardless of its fat content was associated with increased risk for PCAD. The severe atherosclerotic manifestations in the coronary arteries were only associated with higher intake of high-fat dairy.

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