['To examine relationships among demographic variables, healthcare system distrust, lung cancer stigma, smoking status, and timing of medical help-seeking behavior in individuals with symptoms suggestive of lung cancer after controlling for ethnicity, socioeconomic status, and social desirability.', 'Descriptive, cross-sectional, correlational study.', 'Outpatient oncology clinics in Louisville, KY.', '94 patients diagnosed in the past three weeks to six years with all stages of lung cancer.', 'Self-report, written survey packets were administered in person followed by a semistructured interview to assess symptoms and timing characteristics of practice-identified patients with lung cancer.', 'Timing of medical help-seeking behavior, healthcare system distrust, lung cancer stigma, and smoking status.', 'Lung cancer stigma was independently associated with timing of medical help-seeking behavior in patients with lung cancer. Healthcare system distrust and smoking status were not independently associated with timing of medical help-seeking behavior.'] Does lung cancer stigma predict timing of medical help-seeking behavior?