Research Article

Effect of Isoniazid Preventive Therapy on the Incidence of Tuberculosis among Seropositive Children Attending HIV/AIDS Care in Two General Hospitals, Northwest Ethiopia, 2021

Table 3

Incidence rate of TB per 100 person-years for IPT and non-IPT groups in two general hospitals since 2015–2020 (N = 421).

IPT statusNumbers (%)New TB caseNo. of risk observations (years)TB incidence per 100 PY (95% CI)

Ever given253 (60.10)76350.471.24 (1.15–3.14)
Missed168 (39.9)454061.6811.12 (8.2–14.8)
Overall5210412.154.99 (3.8–6.64)