Prevalence of Trachoma following Implementation of the SAFE Strategy in Three Local Government Areas of Taraba State, North Eastern Nigeria

Figures & data

Table 1. Enumeration and examination characteristics of trachoma impact surveys in three local government areas (LGAs) of Taraba State, Nigeria, November 2019 (Gashaka and Ussa) and December 2020 (Donga).

			Persons enumerated, n			Persons examined, n (% of enumerated)
LGA	Clusters	Households surveyed	Total	1–9 years	≥15 years	Total	1–9 years	≥15 years
Donga	25	628	3197	1649	1548	3171 (99)	1649 (100)	1522 (98)
Gashaka	25	626	3458	1723	1735	3399 (98)	1719 (100)	1680 (97)
Ussa	25	629	3280	1513	1767	3184 (97)	1498 (99)	1686 (95)

Table 2. Prevalence of trachomatous inflammation—follicular (TF) in three local government areas (LGAs) in Taraba State, Nigeria, November 2019 (Gashaka and Ussa) and December 2020 (Donga), with corresponding baseline TF prevalence data.^17,18.

LGA	Baseline survey		Impact survey (November 2019 and December 2020)
	TF prevalence in 1–9-year-olds (%)	Year of baseline survey	Children aged 1–9 years examined	Age-adjusted TF prevalence in 1–9-year-olds (%)	95% confidence interval
Donga	6.1	2009	1,649	0.22	0.00–0.65
Gashaka	5.0	2009	1,719	0.00
Ussa	5.0	2013–14	1,498	0.19	0.00–0.44

Figure 1. Prevalence of trachomatous inflammation—follicular (TF) in 1–9-year-olds, by Local Government Area, Taraba State, Nigeria, November 2019 (Gashaka and Ussa) and December 2020 (Donga). The boundaries and names shown, and the designations used on this map do not imply the expression of any opinion whatsoever on the part of the authors, or the institutions with which they are affiliated, concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

Table 3. Prevalence of trachomatous trichiasis (TT) in three local government areas (LGAs) of Taraba State, Nigeria, November 2019 (Gashaka and Ussa) and December 2020 (Donga), with corresponding baseline TT prevalence data.^17,18.

LGA	Baseline survey		Impact survey (November 2019 and December 2020)
	TT prevalence in ≥15-year-olds (%)	Year of baseline survey	Individuals aged ≥15 years examined (n)	Age- and gender-adjusted prevalence of TT^a in ≥15-year-olds (%) (95% CI)	Age- and gender-adjusted prevalence of TT unknown to the health system^b in ≥15-year-olds (%) (95% CI)
Donga	0.8	2009	1522	0.10 (0.02–0.22)	0.08 (0.00–0.19)
Gashaka	6.5	2009	1680	0.02 (0.00–0.06)	0.02 (0.00–0.06)
Ussa	0.1	2013–14	1686	0.10 (0.01–0.18)	0.10 (0.01–0.18)

^aTrachomatous trichiasis (TT) was defined as one or more upper eyelid eyelashes touching the eyeball or evidence of recent removal of in-turned eyelashes from the upper eyelid.

^bTT unknown to the health system was defined as someone with TT but no previous offer of management of that condition.

Figure 2. Prevalence of trachomatous trichiasis (TT) unknown to the health system in ≥15-year-olds, by Local Government Area, Taraba State, Nigeria, November 2019 (Gashaka and Ussa) and December 2020 (Donga). The boundaries and names shown and the designations used on this map do not imply the expression of any opinion whatsoever on the part of the authors, or the institutions with which they are affiliated, concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

Table 4. Household access to water, sanitation, and hygiene (WASH) facilities in three local government areas (LGAs) in Taraba State, Nigeria, November 2019 (Gashaka and Ussa) and December 2020 (Donga), with corresponding baseline data, where available.^15.

LGA	Baseline survey (2013–2014)		Impact survey (November 2019 and December 2020)
	Access to an improved water facility (%)	Access to an improved latrine (%)	Households surveyed	Number of households with an improved drinking water source (%)	Number of households with a drinking water source within 30 minutes return journey (%)	Number of households with an improved latrine (%)
Donga	Not reported	Not reported	628	414 (66)	555 (88)	429 (68)
Gashaka	Not reported	Not reported	626	307 (49)	401 (64)	350 (56)
Ussa	56	11	629	398 (63)	350 (56)	183 (29)

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