Table 2 Electronic search strategy for one database (Medline)

1 China [Mesh], ti, ab

2 Tuberculosis [Mesh], ti, ab

3 1 AND 2

4 Patient compliance [Mesh]

5 adherence OR DOT* OR (directly observed) ti, ab

6 (treatment completion) OR cost* OR finance* OR vulnerable OR incentive* OR insurance OR fees OR monetary OR survey*) ti, ab

7 (low income*) OR (vulnerable group*) OR migrant* ti, ab

8 4 OR 5 OR 6 OR 7

9 3 AND 8