Table 1. Characteristics of studies included in the meta-analysis for the pooled incidence of LTFU among HIV-positive children on ART, Ethiopia, 2023.

Author	Region	Sample sizes	Number of LTFU	Follow-up time in month (IQR)	PMO	PYO	IR per 100 child years
Mulgeta et al (2017) [27]	Addis Ababa	757	92	62.0–83.0	49344	4112
Edessa et al (2015) [28]	Oromia	305	22	18–30	7, 312	609	---
Adem et al (2014) [29]	Oromia	560	46	29–62	24936	2078	---
Bimer et al (2021) [13]	SNNPR	254	70	1–84	8145.33	678.78	---
Chanie et al (2022) [14]	Amhara	344	76	(4–167	19,081	1590.1	4.8
Menshw et al (2021) [15]	Amhara	488	101	-------	-------	---	6.3
Fetene et al(2018) [16]	Amhara	533	46	42–11	15288	1274	3.6
Sidamo et al (2017) [30]	SNNPR	421	43	24–80	21,175	1764.58	---
Haile(2021) [31]	SNNPR	429	38	32–122	30595.2	2549.6	---
Fisiha et al (2020) [17]	Amhara	361	79	14–70	15369.6	1280.8	6.2
Sifr et al (2021) [18]	SNNPR	143	18	-------	-------	356.06	5
Bankere et al (2022) [21]	Oromia	269	43	24–92	15588	1299	3.3
Alebel et al (2020) [32]	Amhara	538	38		14,600	1216	---
Hibstie et al (2020) [19]	Amhara	408	70	2–136	18,755	1562.9	4.5
Melaku et al (2017) [33]	Amhara	6815	2090	------	------	---	---
Koye et al (2012) [34]	Amhara	549	32	1–62	12300	1025	---
Gebremedihn et al (2013) [35]	Tigray	416	23	17–50	14,235	1186.25	---
Gemech et al (2022) [36]	SNNPR	284	32	1–120	15086.04	1257.17	---
Tagesse et al (2020) [37]	Addis Ababa	410	20	18–44	13236	1103	---
Biru et al (2018) [20]	Adiss Ababa	304	18	10–13	3452.4	287.7	9.12
Atallel et al (2018) [38]	Amhara	271	25	1–144	14012.04	1167.67	---
Biyazin et al (2022) [39]	Amhara	251	16	60	7512	626	---
seid (2023) [40]	SNNPR	261	11	43–107	18,955	9477.5	---
Alemu et al(2022) [41]	Amhara	415	18	3–48	8700.5	725.04	---

LTFU: Lost to follow up, IQR: Inter Quartile Range, PMO: Person Month Observation, PYO: Person Year Observation, IR: incidence rate