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Table 1 Sample size by municipalities with results of entomological survey and seroprevalence by gender

From: Association of Trypanosoma cruzi infection with risk factors and electrocardiographic abnormalities in northeast Mexico

Municipality Sample size Recognition of vector Seropositive subjects by ELISA and HAI
Urban area Houses Subjects N/% Male [positive/total (%)] Female [positive/total (%)] Total/%
 Garcia 21 50 2/4 0/18 0/32 0
 Monterrey 154 556 9/1.6 3/244 (1.2) 5/312 (1.6) 8/1.4
 Guadalupe 85 643 6/0.9 1/206 (0.4) 3/437 (0.6) 4/0.6
 Subtotal 260 1249 17/1.36 4/468 (0.85) 8/781 (1.02) 12/1249 (0.96)
Suburban area       
 Allende 75 380 9/2.3 4/177 (2.2) 6/203 (2.9) 10/2.6
 Sabinas Hidalgo 20 100 2/2 1/49 (2) 1/51 (1.9) 2/2
 Montemorelos 52 311 5/1.6 4/133 (3.0) 3/178 (1.6) 7/2.2
Subtotal 147 791 16/2.02 9/359(2.5) 10/432 (2.31) 19/2.4
Rural area       
 Aramberri 56 143 4/2.79 1/61 (1.6) 0/82 1/0.6
 General Teran 34 113 23/20.3 3/42 (7.1) 7/71 (9.8) 10/8.8
 General Zaragoza 47 112 5/4.46 2/41 (4.8) 1/71 (1.4) 3/2.6
 Doctor Arroyo 42 280 18/6.42 3/124 (2.4) 4/156 (2.5) 7/2.5
Subtotal 179 648 50/7.71 9/268 (3.35) 12/380 (3.15) 21/(3.2)
Total 586 2688 83/(3.0) 22/1095 (2.0) 30/1593 (1.88) 52/1.93
  1. N: Number of inhabitants with knowledge of triatomines inside or outside the house. %: Prevalence.