Cardiovascular Risk and Modifiable Risk Factors in Shift-Working Healthcare Workers: A Gender-Stratified Cross-Sectional Study

Background: Shift-working healthcare workers (HCWs) are at elevated cardiovascular (CV) risk due to chronic circadian disruption; however, gender-stratified data on CV risk profiles and modifiable risk factor distribution by occupational exposure duration remain scarce in the Italian hospital setting. This cross-sectional study aimed to characterise the 10-year CV risk profile and the distribution of modifiable risk factors in a hospital-based sample of shift-working HCWs. Methods: A retrospective cross-sectional study was conducted using data from routine occupational health surveillance of shift-working HCWs at a large Italian hospital in Salento, Southern Italy (survey year: 2025). The 10-year CV risk was estimated using the CUORE Project algorithm, validated for the Italian population. Risk was stratified by gender, age group, and shift work duration. Multivariable logistic regression models, adjusted for age, marital status, and presence of children at home, evaluated associations between selected risk factors and CV risk category. The study was reported in accordance with STROBE guidelines. Results: Of 765 HCWs included (320 males, 445 females; mean age 49.3 ± 8.5 years), male workers showed a significantly higher mean 10-year CV risk score (4.98 ± 2.8 vs. 1.34 ± 0.9; p < 0.05). Among male workers, the odds of moderate/high CV risk increased progressively with shift work duration (aOR 6.4 for >30 years). Males also showed significantly higher prevalence of arterial hypertension, overweight, and obesity across all strata. Conclusions: Male shift-working HCWs represent a higher-risk subgroup, characterised by a greater burden of modifiable cardiovascular risk factors. Integration of validated risk assessment tools into occupational health surveillance may support targeted preventive strategies in hospital settings.