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Table 1 Demographic differences of older people group vs. non-old aged group with HIV-1 infection in Fuyang city

From: Phylogenetic analysis highlights the role of older people in the transmission of HIV-1 in Fuyang, Anhui Province, China

  Totala Older people group
(≥50 years old)
Non-old aged group
(< 50 years old)
χ2
P value#
n % n % n %  
Sex
 Male 270 81.08 99 78.57 171 82.61 0.44
 Female 63 18.92 27 21.43 36 17.39  
Transmission category
 Heterosexual contact 202 60.66 113 89.68 89 43.00 < 0.001
 MSM 128 38.44 11 8.73 117 56.52
 IDU 1 0.30 1 0.79 0 0
 Heterosexual/IDU 1 0.30 0 0 1 0.48
 Unknown 1 0.30 1 0.79 0 0
Education
 Illiteracy 45 13.51 40 31.75 5 2.41 < 0.001
 Primary school 98 29.43 49 38.89 49 23.67
 Middle school 116 34.83 27 21.43 89 43.00
 High school 45 13.51 10 7.94 35 16.91
 College or bachelor above 29 8.71 0 0 29 14.01
Marriage
 Married 195 58.56 78 61.90 117 56.52 < 0.001
 Unmarried 74 22.22 11 8.73 63 30.43
 Divorced or Unmatched 63 18.92 37 29.37 26 12.56
 Unknown 1 0.30 0 0 1 0.48
  1. aOnly 333 HIV-1 infected people with demographic date are shown
  2. # All statistical analyses were tested with the Pearson’s χ2 test based on a two-sided of 0.05 using R version 3.5.1