Incidence, adjusted hazard ratios and confidence intervals of new-onset stroke for TBI patients with and without acupuncture treatment in the stratification of sex and age.

*Per 1000 person-years with calculated by correcting immortal time. †Adjusted for age, gender, low income, density of TCM physicians, types of TBI, diabetes mellitus, hypertension, hyperlipidemia, mental disorders, ischemic heart disease, migraine, epilepsy, anticoagulants, antiplatelet agents, and lipid-lowering agents. ‡Adjusted for all covariates in the full model except gender. §Adjusted for all covariates in the full model except age. CI, confidence interval; HR, hazard ratio; IRR, incidence rate ratio; TBI, traumatic brain injury; TCM traditional Chinese medicine.