Table 2.
Articles yielded after refining the search terms
| Study | Year | Country | Sample size |
Age group | Gender (Female) | Findings |
| Isoniazid hair drug levels, TB treatment exposure, and outcomes. |
2021 | India | 264 | <14yrs&>14yrs | 50% | Hair levels of INH and its metabolite may predict TB treatment outcomes |
| Mave etal | ||||||
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| Isoniazid hair drug levels and TB treatment adherence |
2016 | USA | 18 | 3-76yrs | 28% | Hair concentrations of isoniazid assess long-term exposure |
| Gerona etal | ||||||
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| Acceptability of hair testing for therapeutic drug monitoring. |
2021 | Nigeria | 398 | 40(SD±9.8) | 64.8% | Two-thirds of the participants were willing to donate hair in Nigeria for biomedical testing. |