Cost-effectiveness of speech and language therapy plus scalp acupuncture versus speech and language therapy alone for community-based patients with Broca’s aphasia after stroke: a post hoc analysis of data from a randomised controlled trial

Abstract

Objective

This study aimed to assess the cost-effectiveness of combined scalp acupuncture therapy with speech and language therapy for patients with Broca’s aphasia after stroke.

Design

A within-trial cost-effectiveness analysis.

Settings

Community health centres.

Subjects

A total of 203 participants with Broca’s aphasia after stroke who had been randomly assigned to receive scalp acupuncture with speech and language therapy (intervention) or speech and language therapy alone (control).

Intervention

Both groups underwent speech and language therapy (30 min per day, 5 days a week, for 4 weeks), while the intervention group simultaneously received scalp acupuncture.

Primary outcomes

All outcomes were collected at baseline, and after the 4-week intervention and 12-week follow-up. Cost-effectiveness measures included the Chinese Rehabilitation Research Center Standard Aphasia Examination (CRRCAE) and Boston Diagnostic Aphasia Examination (BDAE). Cost–utility was evaluated using quality-adjusted life-years (QALYs). Incremental cost-effectiveness ratios were expressed, and sensitivity analysis was conducted.

Results

The total cost to deliver the intervention was €4001.72, whereas it was €4323.57 for the control group. The incremental cost-effectiveness ratios showed that the intervention was cost-effective (€495.1 per BDAE grade gained; €1.8 per CRRCAE score gained; €4597.1 per QALYs gained) relative to the control over the 12 weeks. The intervention had a 56.4% probability of being cost-effective at the ¥50 696 (€6905.87) Gross Domestic Product (GDP) per capita threshold. Sensitivity analyses confirmed the robustness of the results.

Conclusions

Compared with speech and language therapy alone, the addition of scalp acupuncture was cost-effective in Chinese communities. As the costs of acupuncture services in China are likely to differ from other countries, these results should be carefully interpreted and remain to be confirmed in other populations.

Trial registration number

ChiCTR-TRC-13003703.