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Air Pollution Short-term Cardiac Risk Index (PM2.5 Exposure) Calculator

Air Pollution Short-term Cardiac Risk Index (PM2.5 Exposure): Explanation and Clinical Context Short-term exposure to fine particulate matter (PM₂.₅, particles with diameter ≤2.5 μm) has been shown to increase the risk of acute cardiovascular events such as myocardial infarction, arrhythmia, heart failure exacerbation, and sudden cardiac death. Epidemiological studies demonstrate that even transient exposure to eleva

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Heat Stress Cardiac Event Probability Model (Workplace)

: Explanation and Clinical Context This calculator estimates the relative short-term increase in cardiovascular event risk during a work shift in hot environments using WBGT. It anchors risk to a pragmatic WBGT threshold and scales risk by exceedance, shift duration, and vulnerability (age, known CVD, and medications that may impair heat tolerance). The temperature–risk elasticity is based on meta-analytic evidence t

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Heavy Metal Exposure Cardiac Toxicity Index (Lead & Arsenic) Calculator

Heavy Metal Exposure Cardiac Toxicity Index (HM-CTI, Lead & Arsenic): Explanation and Clinical Context The HM-CTI is an evidence-informed, pragmatic index summarizing cardiovascular toxicity risk from two established environmental cardiotoxins: lead and inorganic arsenic. It uses two biomarkers—blood lead level (BLL, µg/dL) and urinary inorganic-related arsenic (iAs+MMA+DMA, µg/L)—to generate a 0–10 score, categorizi

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High-G Cardiac Screening Index (Aviation) Calculator

High-G Cardiac Screening Index (Aviation): Explanation and Clinical Context What this calculator does. It implements the Cardiac Force Index (CFI) framework reported in military aircrew: CFI = body weight × activity ÷ heart rate. Using wearable-derived activity at rest and during comfortable walking, the tool outputs RCFI (rest), WCFI (walk), and the Cardiac Force Ratio (CFR = WCFI/RCFI) that summarizes reserve from

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Occupational Noise – Cardiac Hypertension Index (ON-CHI) Calculator

Occupational Noise – Cardiac Hypertension Index (ON-CHI): Explanation and Clinical Context The ON-CHI is a conceptual tool that estimates the incremental hypertensive risk attributable to occupational noise exposure through a simple “risk-points” model integrating ambient noise level (LAeq,8h in dB(A)) and cumulative exposure duration (years). Chronic exposure to elevated occupational noise triggers sympathetic nervo

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Occupational Sedentary Behavior Cardiac Risk Score Calculator

Occupational Sedentary Behaviour Cardiac Risk Score: Explanation and Clinical Context This tool provides an approximate risk stratification for cardiovascular (cardiac) risk based on occupational sedentary behaviour, demographic and lifestyle variables. Prolonged occupational sitting has been identified as a potential modifiable risk exposure for cardiometabolic disease and cardiovascular outcomes: for instance, indi

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Pesticide Exposure Cardiovascular Risk Composite (PE-CRC) Calculator

Primary exposure setting -- choose -- No known exposure Environmental/household use Occupational – typical handling Occupational – high exposure (mixing/spraying without controls, historical high levels) Exposure duration (years) Predominant pesticide class (optional) -- not specified -- No specific class Organophosphate (OP) Pyrethroid Carbamate Multiple classes / mixtures Type 2 diabetes -- choose -- No Yes Pestici

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Radiation Exposure Cardiovascular Risk Calculator (Medical Workers)

: Explanation and Clinical Context This calculator estimates the potential cardiovascular risk associated with chronic occupational exposure to ionizing radiation among medical professionals such as interventional cardiologists, electrophysiologists, and radiologic technologists. The model integrates traditional cardiovascular risk modifiers (age, sex, smoking, hypertension) with cumulative radiation dose to approxim

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Shift Work Cardiometabolic Risk Multiplier

: Rationale, Model Choices, and Clinical Context This calculator estimates relative cardiometabolic risk multipliers associated with shift work using pooled quantitative effects from large meta-analyses. For cardiovascular disease (CVD) outcomes, a contemporary dose–response meta-analysis showed that night-shift workers have a higher risk of total CVD events (RR ≈ 1.13) and CVD mortality (RR ≈ 1.27); risk rises with

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Urban Heat Island (UHI) Cardio-Stress Adjuster

Urban Heat Island Cardio-Stress Adjuster: Rationale, Model, and Clinical Context This tool provides an evidence-informed estimate of incremental cardiovascular risk associated with ambient heat and the Urban Heat Island (UHI) effect. It is designed for public health planning, triage protocols during heat alerts, and patient counseling. The core signal comes from meta-analytic evidence that cardiovascular risk rises w