Table 2

Incidence and adjusted risks of dementia during the follow-up period in patients with stroke with and without acupuncture treatment

NPerson-yearsEventsIncidence*Model 1Model 2Model 3Model 4Model 5
HR(95% CI)HR(95% CI)HR(95% CI)HR(95% CI)HR(95% CI)
No acupuncture561029 594102534.61.00(reference)1.00(reference)1.00(reference)1.00(reference)1.00(reference)
Acupuncture561027 20872026.50.76(0.69 to 0.83)0.76(0.69 to 0.84)0.76(0.69 to 0.84)0.75(0.68 to 0.83)0.73(0.66 to 0.80)
  • Model 1: unadjusted.

  • Model 2: adjusted for age and sex.

  • Model 3: adjusted for age, sex, urbanisation, low income and stay in medical centre.

  • Model 4: adjusted for covariates in model 3 plus subtypes of stroke, intensive care unit stay, neurosurgery and length of stay.

  • Model 5: adjusted for covariates in model 4 plus hypertension, diabetes, mental disorder, chronic obstructive pulmonary disease, ischaemic heart disease, urinary tract infection, hyperlipidaemia, pneumonia, congestive heart failure, epilepsy, renal dialysis and liver cirrhosis.

  • *Per 1000 person-years.