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Table 1 Demographic variables related to the presence of anti-OPV neutralizing antibodies

From: Seroprevalence of Orthopoxvirus in rural Brazil: insights into anti-OPV immunity status and its implications for emergent zoonotic OPV

Demographics N (%) PRNT positive (%) PRNT negative (%) p value
Gender     
 Male 127 (52.9) 44 (34.6) 83 (65.4) 0.175
 Female 113 (47.1) 30 (26.5) 83 (73.5)  
Age group (years)     
 >35 126 (52.5) 67 (53.1) 59 (46.9) <0.0001
 ≤35 114 (47.5) 7 (6.2) 107 (93.8)  
Self-reported skin color     
 Brown 142 (59.2) 44 (31.0) 98 (69.0) 0.656
 Black 62 (25.8) 21 (33.9) 41 (66.1)  
 White 36 (15.0) 9 (25.0) 27 (75.0)  
Education levela     
 Elementary school or less 156 (65.0) 45 (28.9) 111 (71.1) 0.032
 High school or more 60 (25.0) 16 (26.7) 44 (73.3)  
 Have never gone to school 24 (10.0) 13 (54.1) 11 (45.9)  
Residence area     
 Rural 208 (86.7) 63 (30.3) 145 (69.7) 0.641
 Urban 32 (13.3) 11 (34.4) 21 (65.6)  
Occupation     
 Rural workers 127 (52.9) 52 (21.0) 75 (59.0) 0.001
 Housewives 59 (24.6) 15 (25.5) 44 (74.5)  
 Othersb 54 (22.5) 7 (13.0) 47 (87.0)  
 Incomec     
 ≤1 min wage 178 (74.2) 57 (32.0) 121 (68.0) 0.178
 >1 min wage 19 (7.9) 9 (47.4) 10 (52.6)  
 Not stated 43 (17.9) 8 (19.6) 35 (81.4)  
Total 240 (100.0) 74 (30.8) 166 (69.2)  
  1. a: Elementary school or less (≤8 years of study), High school or more (>8 years of study); b: this group includes other professions such as Veterinary, Zootechnician, Dentist, Seller and children; c: income value in Brazilian currency in 2012 = R$ 622,00 (R$ 1,00 = US$ 2,08 approximately)