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Table 2 Follow up information of HIV cohort in Dilla University Referral Hospital from January 2007 to August 2013

From: Effect of isoniazid preventive therapy on tuberculosis or death in persons with HIV: a retrospective cohort study

Follow up time Total participants on follow up n (PYs) IPT started ART started TB Diagnosed n (Per 100 PYs) Death Reported n (per 100 PYs) Composite outcome n (per 100 PYs) Lost to follow up n (per 100 PYs) Censored alive
Baseline (t = 0) 1922 (0) 12 289 0 (0) 0 (0) 0 (0) 0 (0) 0
6th month 1519 (865.2) 43 1293 57 (6.59) 82 (9.48) 139 (16.07) 175 (20.22) 89
12th month 1300 (703.1) 50 109 16 (2.28) 21 (2.99) 37 (5.26) 143 (20.34) 39
24th month 1028 (1165.7) 94 104 19 (1.63) 15 (1.29) 34 (2.92) 130 (11.15) 108
36th month 780 (893.7) 81 60 8 (0.90) 13 (1.46) 21 (2.35) 66 (7.39) 161
48th month and beyond 626 (1863.4) 94 64 10 (0.54) 17 (0.91) 27 (1.45) 64 (3.44) 63
Total (5491.2) 374 1919 110 (2.00) 148 (2.70) 258 (4.70) 578 (10.53) 460
  1. ART Antiretroviral therapy, IPT Isoniazid Preventive Therapy, n Number of people, PYs Person years, and TB Tuberculosis