Table 6

 Hepatic risks of chemoprophylaxis

ReferenceNHepatitis/100 000*Completion (%)Comments
H, isoniazid; R, Rifampicin; Z, Pyrazinamide.
*Symptomatic or grade 3/4 hepatitis.
Regimen: Isoniazid (6H)
IUATLD1669654807865% protective efficacy (1 death from 6H)
Jasmer et al21282100059
Nolan et al2211141100Female OR 3.3 (0.87 to 12.45)
White OR 2.60 (0.75 to 8.95)
Increase with age χ2 = 5.22
Bailey et al234271170
Weighted average18815278
Regimen: Rifampicin/isoniazid (3RH)
Hong Kong Chest Service et al24170176650% protective efficacy in silicosis
Regimen: Rifampicin/pyrazinamide (2RZ)
Lee et al25148945957Female OR 4.1 (1.2 to 14.3) Recent tuberculin conversion OR 14.3 (1.8 to 115)
Jasmer et al21307770061Age >35 OR 12.2 (1.49 to 100.3)
OR 8.46 isoniazid (1.9 to 76.5)
Stout et al26114530067.5
Weighted average5696648