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Table 1 Characteristics of individuals and households surveyed in 2017. Indigenous households were defined as those in which the household head was born in the village

From: Impact of 19 years of mass drug administration with ivermectin on epilepsy burden in a hyperendemic onchocerciasis area in Cameroon

Characteristic Total Bayomen Ngongol Nyamongo
Individuals’ characteristics n = 2286 n = 582 n = 553 n = 1151
Age (years), median (IQR) 18 (7–33) 15 (6–32) 20 (8–35) 18 (8–33)
Female, n (%) 1148 (50.2) 306 (52.6) 261 (47.2) 581 (50.5)
Male, n (%) 1138 (49.8) 276 (47.2) 292 (52.8) 570 (49.5)
Household characteristics n = 324 n = 88 n = 86 n = 150
Number of people per household, median (IQR) 6 (4–9) 6 (4–9) 6 (4–8) 7 (5–10)
Number of households whose head’s occupation is agriculture, n (%) 278 (85.8) 70 (79.6) 73 (84.9) 135 (90.0)
Number of indigenous households, n (%) 173 (53.4) 25 (28.4) 35 (40.7) 113 (75.3)
For migrants, year of immigration, median (IQR) 2008 (1997–2014)a 2012 (2002–2015) 2002 (1987–2013)a 2003 (1992–2013)a
Number of households with
 1 SCE, n (%) 59 (18.2) 12 (13.6) 23 (26.7) 24 (16.0)
 2 SCE, n (%) 14 (4.3) 2 (2.3) 4 (4.7) 8 (5.3)
 3 or more SCE, n (%) 7 (2.2) 1 (1.1) 1 (1.2) 5 (3.3)
Number of households with history of death from epilepsy, n (%) 52 (16.1)a 12 (13.6) 16 (18.6)a 24 (16.0)a
 Year of death, median (IQR) 2007 (2000–2011) 2005 (1999–2009) 2009 (1999–2013) 2007 (2001–2010)
 Age at death (years), median (IQR) 20 (15–27) 19 (14–28) 21 (15–27) 20 (17–29)
Number of SCE, PWE and PE
In the whole population
 SCE, n (%) 112 (4.9) 19 (3.3) 34 (6.2) 59 (5.1)
 PWE, n (%) 81 (3.5) 15 (2.6) 24 (4.3) 42 (3.7)
 PE, n (%) 101 (4.4) 17 (2.9) 29 (5.2) 55 (4.8)
In the indigenous population
 SCE, n (%) 79 (5.9) 14 (6.7) 15 (6.5) 50 (5.5)
 PWE, n (%) 58 (4.3) 11 (5.3) 10 (4.3) 37 (4.1)
 PE, n (%) 71 (5.3) 13 (6.3) 12 (5.2) 46 (5.1)
Characteristics of SCE, PWE and PE
Age, median (IQR)
 SCE 26 (20–34) 29 (18–33) 26 (21–39) 24 (19–32)
 PWE 24 (20–32) 26 (18–33) 24 (20–31) 24 (20–32)
 PE 24 (20–32) 29 (21–33) 23 (20–28) 24 (19–30)
 Not epilepsy patient 46 (20–70)    
Age at onset (years), median (IQR)b 12 (10–14)a 11 (9–13) 11 (9–13) 13 (10–15)a
Year of onset, median (IQR)b 2004 (1996–2010)a 2002 (1995–2011) 2003 (1994–2009) 2006 (1996–2010)a
Type of seizures
 Only NS, n (%)b 2 (2.5) 0 0 2 (4.8)
 NS and other types of seizures, n (%)b 21 (25.9) 3 (20.0) 9 (37.5) 9 (21.4)
 Other types of seizures, n (%)b 58 (71.6) 12 (80.0) 15 (62.5) 31 (73.8)
  1. aData missing
  2. bFor PWE only
  3. Abbreviations: SCE, suspected case of epilepsy; PWE, persons living with epilepsy; PE, persons with possible epilepsy (PWE and SCE who could not be examined by a neurologist); NS, nodding seizures