TABLE 5

Comparison of shorter regimens and individualised longer regimens for outcome of failure or relapse versus success, using propensity score matched individual patient data meta-analysis

Studies shorter:longerShorter events/totalLonger events/totalPropensity score matched multivariable meta-regression
PairsaOR (95% CI)aRD (95% CI)
Overall9:38118/2282112/192619262.0 (0.96–4.0)+0.02 (0.00–0.05)+
HIV status strata
 People living with HIV5:1024/29555/7502952.1 (0.6–7.7)0.03 (−0.02–0.07)
 HIV negative9:3894/197856/116211621.9 (0.9–4.0)0.02 (−0.00–0.04)
Extensiveness
 Extensive9:3691/196983/132013201.2 (0.6–2.6)0.01 (−0.02–0.03)
 Not extensive8:2620/25928/6022592.9 (0.8–10)0.05 (0.00–0.09)
Pyrazinamide DST#
 Resistant5:2636/27011/34927010.7 (1.8–64.5)¶,+0.12 (0.07–0.16)+
 Susceptible5:2312/24813/4282481.3 (0.3–6.7)0.01 (−0.04–0.05)
Ethionamide/prothionamide DST#
 Resistant5:2623/2494/1491493.9 (1.0–15.1)¶,+0.07 (−0.01–0.16)+
 Susceptible4:307/66026/6136130.1 (0.0–1.5)−0.03 (−0.05– −0.01)
Ethambutol DST#
 Resistant8:3739/69227/5545543.1 (1.8–5.3)¶,+0.09 (0.04–0.13)+
 Susceptible3:231/2979/3342970.2 (0.0–1.9)−0.02 (−0.04–0.01)

Data are presented as n, unless otherwise stated. aOR: adjusted odds ratio; aRD: adjusted risk difference; DST: drug susceptibility testing. All models adjusted for age, sex, HIV status, previous treatment with first-line tuberculosis medications and extensiveness of disease. Results were adjusted as described in the Methods. #: analyses restricted to patients with DST-confirmed fluoroquinolone susceptibility (i.e. excluding those with no DST data for fluoroquinolones); : aOR calculated from fixed effect model; +: confidence intervals suggestive of increased odds or risk of failure or relapse with the shorter regimen.