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Table 3 Comparison of the families and household characteristics among the three areas evaluated in the cohort study, Belo Horizonte, Minas Gerais, Brazil

From: Effectiveness of the Brazilian Visceral Leishmaniasis Surveillance and Control Programme in reducing the prevalence and incidence of Leishmania infantum infection

Variable AI 2006 AI 2008 AI 2010 P-value
n (%) n (%) n (%)
Number of residences 142 (35.7) 143 (35.9) 113 (28.4)  
Education level of the household head
 Higher education (in course or completed) 15 (10. 6) 7 (4.9) 27 (23.9) 0.001
 High-school (completed) 60 (42.3) 77 (53.9) 51 (45.1)
 Foundation (completed) 28 (19.7) 26 (18.2) 16 (14.2)
 Primary school (completed) 22 (15.5) 30 (21.0) 13 (11.5)
 Iliterate 17 (11.9) 3 (2.10) 6 (5.31)
Socio-economic class (BMMW)
 A1, A2 and B1 (20.8 to 4.2) 16 (11.3) 18 (12.6) 30 (26.6) 0.001
 B2 (4.1 to 2.5) 33 (23.2) 41 (28.7) 44 (38.9)
 C1, C2 and D (2.4 to 1.1) 93 (65.5) 84 (58.7) 39 (34.5)
Chickens
 Present 20 (14.1) 18 (12.6) 10 (8.9) 0.43
 Absent 122 (85.9) 125 (87.4) 103 (91.2)
Dogs
 Present 75 (52.8) 80 (55.9) 60 (53.1) 0.85
 Absent 67 (47.2) 63 (44.1) 53 (46.9)
Peridomiciliar plants
 Present 107 (75.4) 98 (68.5) 87 (77.0) 0.15
 Absent 33 (23.24) 45 (31.47) 26 (23.0)
Neighbourhood trees
 Present 92 (64.8) 89 (62.2) 75 (66.4) 0.78
 Absent 50 (35.2) 54 (37.8) 38 (33.6)
Rubble
 Present 55 (38.7) 39 (27.3) 29 (25.7) 0.06
 Absent 85 (59.9) 101 (70.6) 84 (74.3)
Gully
 Present 46 (32.4) 28 (19.6) 24 (21.2) 0.07
 Absent 95 (66.9) 115 (80.4) 88 (77.9)
Waste
 Present 18 (12.7) 18 (12.6) 21 (18.6) 0.21
 Absent 122 (85.9) 125 (87.4) 92 (81.4)
  1. Abbreviations: AI2006, area of intervention since 2006; AI2008, area of intervention since 2008; AI2010, area of intervention since 2010; BMMW, Brazilian monthly minimum wage; Class A1, A2 and B1 (20.8 to 4.2 BMMW); Class B2, (4.1 to 2.5 BMMW); Class C1, C2 and D (2.4 to 1.1 BMMW)