Table 1. Socio-demographic and clinical characteristics of Patients with Nodding Syndrome, Central African Republic, 2019.

Characteristics	1	2	3	4	5
Age (years)	11	8	16	8	15
Sex	Female	Female	Female	Female	Female
Place of Birth	Ouango	Mbaïki	Ouango	Ouango	Gboko
Age at HNa onset (year)	8 (2014)	5 (2016)	8 (2011)	8 (2019)	12 (2016)
Other epilepsy	Generalized tonic-clonic	No epilepsy	Generalized myoclonic	No epilepsy	No epilepsy
Winkler’s classification	HN plus	HN only	HN plus	HN only	HN only
WHOb‘s classification	Confirmed	Probable	Probable	Probable	Probable
Frequency (HN/min)	8	6–10	NA	11–15	5
Trigger factor	Noise	Cold	Noise, heat	None	Meal, cold
Neurological examination	Abnormal/focal	Abnormal	Abnormal/focal	Abnormal	Abnormal/focal
Developmental delay and cognitive decline	Moderate	Mild	No	Moderate	No
Growth retardation	Yes	No	No	Yes	No

^aHN, head nodding.

^bWHO, World Health Organization.