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Table 2 Crude and RDS-adjusted seroprevalence of infectious diseases among study participants

From: Seroprevalence of select bloodborne pathogens and associated risk behaviors among injection drug users in the Paso del Norte region of the United States – Mexico border

  Doña Ana County, NM Ciudad Juárez, MX El Paso, TX Crude %
p-value
Positive Total* Crude % RDS % Positive Total Crude % RDS % Positive Total Crude % RDS %  
HAV 66 97 68.0 - - - - - 105 148 70.9 73.0 0.740 a
HBV 56 94 59.6 - 171 203 84.2 88.3 74 137 54.8 48.6 < .0001 b
HCV 76 95 80.0 - 194 203 95.6 98.7 122 147 83.0 76.4 < .0001a
HIV 1 100 1.0 - 6 203 3.0 2.1 9 155 5.8 10.0 0.109b
Syphilis 3 100 3.0 - 7 193 3.6 4.0 8 150 5.3 9.9 0.605a
  1. *Total excludes participants whose sample was either insufficient or rejected for testing.
  2. a Chi-square test of independence used to observe differences among crude seroprevalence across sites.
  3. b Fisher's Exact method used to run test of independence due to > 20% of cells with less than 5 observations.