Table 2. Characteristics of the included studies in the systematic review on tuberculosis health literacy.

Author, year	Country	WHO Region	Study design	Sample size	Study type	Includes tools for health literacy
Cabrera et al., 200234	United States	Region of the Americas	Mixed method	210	Treatment adherence	Questionnaire
Kamineni et al., 201121	India	South-East Asia Region	Mixed method	219	Case detection, treatment adherence and outcome	NA
Oladunjoye et al., 201325	Nigeria	African Region	Cross-sectional	74	Health literacy	Functional health literacy
Albino et al., 201415	Peru	Region of the Americas	Qualitative	16	Treatment adherence	NA
Mohr et al., 201533	South Africa	African Region	Randomized controlled trial	200	Treatment adherence	Questionnaire
Behzadifar et al., 201518	Iran (Islamic Republic of)	Eastern Mediterranean Region	Qualitative	40	Treatment adherence	NA
Theron et al., 201527	South Africa	African Region	Randomized controlled trial	1502	Treatment adherence	Questionnaire
Wilson et al., 201629	United States	Region of the Americas	Cross-sectional	15	Case detection	Questionnaire
Li et al., 201622	China	Western Pacific Region	Cohort	181	Treatment adherence and outcome	Chinese citizen health literacy questionnaire
Wang & Wang, 201728	China	Western Pacific Region	Cohort	210	Treatment adherence and outcome	Chinese citizen health literacy questionnaire
Jie et al., 201723	China	Western Pacific Region	Cohort	373	Treatment adherence and outcome	Chinese citizen health literacy questionnaire
Li et al., 20199	China	Western Pacific Region	Cross-sectional	60	Health literacy	Chinese health literacy scale - tuberculosis
Asemahagn et al., 202016	Ethiopia	African Region	Qualitative	21	Case detection	NA
Yang et al., 202030	Republic of Korea	Western Pacific Region	Cross-sectional	206	Treatment adherence and outcome	37-item questionnaire
Qiao-Lin et al., 202035	China	Western Pacific Region	Cohort	225	Treatment adherence and outcome	Health literacy management scale
Nayak et al., 202124	India	South-East Asia Region	Cross-sectional	100	Health literacy	Newest vital scale
Baloyi & Manyisa, 202217	South Africa	African Region	Qualitative	8	Treatment outcome	NA
Ernawati et al., 202219	Indonesia	South-East Asia Region	Randomized controlled trial	50	Health literacy	HLS-EU-Q10 IDS
Kallon et al., 202220	South Africa	African Region	Qualitative	29	Case detection, treatment adherence and outcome	NA
Olayemi et al., 202226	Nigeria	African Region	Cross-sectional	310	Health literacy	13 item Health information literacy scale
Zhang et al., 202231	China	Western Pacific Region	Cross-sectional	472	Treatment adherence	NA
Zhou et al., 202232	China	Western Pacific Region	Mixed method	20	Treatment adherence	NA

NA: not applicable. WHO: World Health Organization