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Table 3 Individuals screened for epilepsy and prevalence of confirmed cases by gender, village and ethnic group

From: High prevalence of epilepsy in two rural onchocerciasis endemic villages in the Mahenge area, Tanzania, after 20 years of community directed treatment with ivermectin

Village Population enrolled Epilepsy cases (%) by sex
Total Males (%) Suspected epilepsy (%) No. examined (%) Epilepsy cases (%) χ2-test (P-value) Male Female χ2-test (P-value)
Matumbala 972 431(44.3) 44 (4.5) 44 (100) 16 (1.65) 1.26a 7 (1.62) 9 (1.66) 0.002 (0.962)
Vigoi 1646 741(45.0) 50 (3.04) 49 (98.0) 23 (1.40) 1.26a 0.26 (0.612) 12 (1.62) 11 (1.22) 0.482 (0.487)
Mdindo 941 447(47.5) 56 (5.9) 55 (98.2) 33 (3.51) 3.71a 6.63 (0.010) 17 (3.80) 16 (3.24) 0.221 (0.638)
Msogezi 1558 774(49.7) 94 (6.0) 91 (96.8) 55 (3.53) 7.79 (0.005) 26 (3.36) 29 (3.70) 0.407 (0.523)
Ethnic group
 Wapogoro 4751   234 (4.9)   119 (2.51)     
 Wangoni 54   1 (1.9)   1 (1.85)     
 Wahehe 42   2 (4.8)   2 (4.76)     
 Wandamba 32   1 (3.1)   1(3.13)     
 Wandendeule 17   2 (11.8)   2 (11.77)     
 Wazigua 9   2 (22.2)   2 (22.21)     
 Others 212   4 (0.9)   0 (0)     
Total 5117 2393 (46.8) 244 (4.8) 239 (97.9) 127 (2.48)   61 (2.59) 66 (2.39) 0.132 (0.716)
  1. aEpilepsy prevalence ratio observed in 1989 survey by Rwiza et al. where Matumbala was part of Vigoi Village