Classification of patients with cold sensation by a review of systems database: A single-centre observational study

•Appropriate herbal formula is determined on the basis of the patient’s traditional medicine pattern (TM1).•Importance of accompanying symptoms in diagnosing a traditional medicine pattern(TM1) has not been well demonstrated.•Evaluation of the patients’ subjective symptoms recorded on e-questionnaire.•Patients with a qi stagnation pattern had higher rates of depression and insomnia.•Patients with a blood stasis pattern, had higher rates of acne, body stiffness, and menstrual abnormality.