Prevalence of Trachoma in Benishangul Gumuz Region, Ethiopia: Results of Seven Population-Based Surveys from the Global Trachoma Mapping Project

Figures & data

Figure 1. Evaluation unit boundaries, Global Trachoma Mapping Project, Benishangul Gumuz, Ethiopia, 2013–2014.

Table 1. Age distribution of survey participants, Global Trachoma Mapping Project, Benishangul Gumuz, Ethiopia, 2013–2014.

Evaluation unit	Age, years	Examined, n	Absent, n	Refused, n	Other, n	Total, n
Dangur, Wembera, Guba	1–9	985	30	–	–	1015
	15+	1442	148	1	–	1591
Pawe, Mandura	1–9	955	26	–	–	981
	15+	1382	285	3	–	1670
Bulen, Dibate	1–9	1146	13	–	–	1159
	15+	1494	252	3	–	1749
Bio Jiganifado, Sirba Abay, Kamashi, Yaso, Agelo Meti	1–9	1204	25	–	–	1229
	15+	1450	267	4	–	1721
Komesha, Sherkole, Menge, Kurmuk	1–9	1194	17	2	–	1213
	15+	1209	291	7	2^a	1509
Assosa	1–9	806	21	4	–	831
	15+	1505	389	15	2^b	1911
Bambasi, Maokom Special, Oda Beldigu	1–9	1127	26	–	–	1153
	15+	1467	237	3	–	1707
Total		17,366	2027	42	4	19,439

^aKomesha, one individual with bilaterial phthisis bulbi, one individual who could not be examined.

^bAssosa, two blind individuals.

Table 2. Prevalence of trachomatous inflammation – follicular (TF) in children aged 1–9 years by evaluation unit, Global Trachoma Mapping Project, Benishangul Gumuz, Ethiopia, 2013–2014.

Evaluation unit	Examined, n	TF, n (%)	Adjusted^a TF, % (95% confidence interval)^b
Danguar, Wembera, Guba	985	55 (5.6)	5.8 (3.1–9.4)
Pawe, Mandura	955	180 (18.8)	17.6 (11.7–25.5)
Bulen, Dibate	1146	219 (19.1)	15.2 (11.2–22.4)
Bio Jiganifado, Sirba Aby, Kamashi, Yaso, Agelo Meti	1204	23 (1.9)	1.7 (1.0–2.7)
Komesha, Sherkole, Menge, Kurmuk	1194	66 (5.5)	5.1 (3.1–7.5)
Assosa	806	31 (3.8)	2.8 (1.5–4.4)
Bambasi, Maokom Special, Oda Beldigu	1127	41 (3.6)	3.3 (2.1–4.7)

^aAdjusted for age using the Benishangul Gumuz census data from the Ethiopian National Census 2007.

^bConfidence intervals obtained by bootstrapping age-adjusted cluster-level proportions.

Figure 2. Distribution of trachomatous inflammation – follicular (TF) prevalence in 1–9-year-olds at evaluation unit level, Global Trachoma Mapping Project, Benishangul Gumuz, Ethiopia, 2013–2014.

Table 3. Prevalence of trichiasis in those aged ≥15 years, Global Trachoma Mapping Project, Benishangul Gumuz, Ethiopia, 2013–2014.

Evaluation unit	Examined, n	Trichiasis, n (%)	Adjusted^a trichiasis %, (95% confidence interval)^b
Danguar, Wembera, Guba	1442	10 (0.7)	0.3 (0.1–0.5)
Pawe, Mandura	1382	71 (5.1)	2.5 (1.6–3.4)
Bulen, Dibate	1494	39 (2.6)	1.1 (0.7–1.8)
Bio Jiganifado, Sirba Aby, Kamashi, Yaso, Agelo Meti	1450	22 (1.5)	0.8 (0.5–1.2)
Komesha, Sherkole, Menge, Kurmuk	1209	34 (2.8)	1.8 (0.8–3.0)
Assosa	1505	41 (2.7)	0.9 (0.5–1.4)
Bambasi, Maokom Special, Oda Beldigu	1467	29 (2.0)	1.7 (1.0–2.7)

^aAdjusted for sex and age in 5-year age groups using the Benishangul Gumuz census data from the Ethiopian National Census 2007.

^bConfidence intervals obtained by bootstrapping age-adjusted cluster-level proportions.

Figure 3. Distribution of trichiasis prevalence in ≥15-year-olds at evaluation unit level, Global Trachoma Mapping Project, Benishangul Gumuz, Ethiopia, 2013–2014.