Although there have been reports on the association between smoking and increased level of inflammatory markers in hypertensive this has not been assessed prospectively in a large, modern cohort using data mining approaches. We conducted a cross-sectional analysis of the Mashad trial which was a prospective. 2085 smokers aged 35 to 65 years was studied. Inflammatory indices measured included: Hemoglobin-Platelet Ratio (HPR), Uric acid-high Density Lipoprotein (HDL) Ratio (UHR), Neutrophil-Lymphocyte Ratio (NLR), Systemic Immune Inflammation (SII) index, WBC, Platelet-Lymphocyte Ratio (PLR), and RBC Distribution Width (RDW). The association between these parameters and smoking in hypertensive individuals was examined. Over the course of the 6-year monitoring period, 585 peoples had HTN of whom the majority was female (59%). As per the LR analysis, there was a significant association between hypertension and age, WBC, SII, PLR in female smokers, as well as age and PLR in male smokers. (p-value < 0.05). PLR (OR = 0.993, CI 95% (0.987, 0.999)) and age (1.080 (1.058, 1.102)) for male and WBC (1.340 (1.139, 1.577)) and age (1.091 (1.070, 1.113)) for female exhibits the most appropriate estimate. Using the DT model for male individuals, those with, age ≥ 64 years, and SII < 336 had the correlated with hypertension prevalence (76%). For females, those with age ≥ 62 years, WBC ≥ 6.1, and SII < 445.634 had the highest risk of HTN. Age and SII for smoker males and age and WBC for smoker females showed the strongest correlation with hypertension. Age and WBC were the most significant indicators for predicting HTN.

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