Psychological Resilience and Caffeine Use Disorder Among Nurses: A Cross-Sectional Study

Purpose: Caffeine is widely used by nurses to manage fatigue and work demands; however, little is known about its relationship with psychological resilience. This study examined the association between caffeine use disorder and psychological resilience among nurses and identified factors associated with caffeine use disorder.Methods:This cross-sectional study included 364 nurses working in a public hospital in Türkiye. Data were collected using the Caffeine Use Disorder Questionnaire (CUDQ) and the Resilience Scale for Adults (RSA). Descriptive statistics, Pearson correlation, multiple linear regression, and hierarchical linear regression analyses were performed.Results:Caffeine use disorder was negatively correlated with overall psychological resilience (r = −0.173, p < 0.001) and several resilience dimensions (r = −0.119 to −0.159, p < 0.05). Younger age (β = −0.204, p < 0.001), female gender (β = −0.158, p = 0.002), smoking (β = −0.199, p < 0.001), lack of regular exercise (β = −0.116, p = 0.024), and lower psychological resilience (β = −0.178, p < 0.001) were independently associated with higher caffeine use disorder scores. Psychological resilience explained an additional 3.0% of the variance in caffeine use disorder scores beyond sociodemographic, occupational, and lifestyle characteristics (ΔR² = 0.030, p < 0.001).Conclusion: Higher psychological resilience was associated with lower caffeine use disorder among nurses, independent of sociodemographic, occupational, and lifestyle characteristics. The potential role of resilience-focused interventions in relation to problematic caffeine use and well-being warrants further investigation.