Table 3. Mortality rate stratified by socio-demographic and clinical characteristics of TB/HIV co-infected children at University of Gondar Comprehensive Specialized Hospital, Northwest Ethiopia, from February 2005 to March 2017.

Characteristics		Total N (%)	PY	Death N (%)	IDR
Age (years)	<1	11(4.06)	56.10	5(1.85)	8.92
	> = 1	260(95.94)	1105.20	33(12.18)	2.99
Residence	Urban	219(80.81)	1015.25	28(10.33)	2.76
	Rural	52(19.19)	152.40	10(3.69)	6.56
Child lives with	Parents	247(91.14)	1094.58	34(12.55)	3.10
	Orphaned	11(4.06)	36.00	2(0.74)	5.56
	Others	13(4.80)	37.10	2(0.74)	5.40
Baseline WHO stage	I & II	34(12.55)	114.25	3(1.11)	2.63
	III & IV	237(87.45)	1047.00	35(12.9)	3.34
Baseline immunity status	Non-significant/Mild	87(32.10)	337.83	8(2.95)	2.37
	Advanced/ severe	184(67.90)	823.42	30(11.07)	3.64
Initial ART regiment based on NRTIs	ABC-based	10(3.69)	20.17	5(1.85)	24.81
	AZT-based	185(68.27)	828.33	20(7.38)	2.40
	D4T-based	67(24.72)	298.17	12(4.43)	4.00
	TDF-based	9(3.32)	20.99	1(0.37)	4.81
Treatment failure	Yes	28(10.33)	149.58	5(1.85)	3.34
	No	243(89.67)	1018.10	33(12.18)	3.24
Clinical failure	Yes	5(1.85)	12.67	3(1.11)	23.70
	No	266(98.15)	1155.00	35(12.92)	3.00
Isoniazid	Yes	97(35.79)	542.00	6(2.21)	1.11
	No	174(64.21)	625.66	32(11.81)	5.11
Hemoglobin g/dl	<10	48(17.71)	167.58	14(5.17)	8.41
	> = 10	223(82.29)	1000.10	24(8.86)	2.40
CPT	Yes	236(87.08)	1079.58	28(10.33)	2.60
	No	35(12.92)	88.10	10(3.69)	11.40
Adherence	Good	231(85.24)	1037.92	23(8.49)	2.22
	Fair/poor	40(14.76)	123.33	15(5.54)	12.20
Site of TB	PTB	186(68.63)	801.67	13(4.80)	1.62
	EPTB	85(31.37)	365.999	25(9.23)	6.83
Follow-up years	<1	44(16.24)	15.33	23(8.49)	150.00
	1–5	116(42.8)	345.92	9(3.32)	2.60
	>5	111(40.96)	800.00	6(2.21)	0.75