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Table 2 Responses to the questions on STI knowledge among 304 healthcare providers of the two arms before (B), during (D) and after (A) the intervention

From: Improved knowledge and reported practice regarding sexually transmitted infections among healthcare providers in rural Vietnam: a cluster randomised controlled educational intervention

Correct identification STI intervention arm Control arm
% (n = 160) % (n = 144)
  B D A p * B D A p *
STI identification         
  Gonorrhoea 94 98 99 0.119 93 98 99 0.040
  Syphilis 93 96 97 0.312 92 94 99 0.033
  Trichomonas 55 70 89 0.000 51 58 69 0.007
  Genital warts 66 83 93 0.000 63 66 80 0.005
  Chlamydia 40 55 77 0.000 36 49 50 0.019
Suspected symptoms         
  Vaginal discharge 70 91 96 0.000 60 72 81 0.001
  Urethral discharge 75 92 98 0.000 72 78 90 0.001
  Genital ulcers, warts 91 95 99 0.027 83 90 92 0.158
  Lower abdominal pain in females 52 65 84 0.000 35 53 62 0.000
Causes of STI         
  Bacteria 69 79 75 0.226 60 77 84 0.000
  Viruses 76 74 85 0.106 65 72 88 0.000
  Parasites/protozoa 43 60 77 0.000 43 53 56 0.088
Risk factors for STI         
  Unsafe sex 91 93 100 0.005 87 91 97 0.010
  Unsafe blood transfusion 40 61 75 0.000 29 38 51 0.000
Routes of transmission         
  Sexual intercourse 97 93 99 0.106 97 100 100 0.121
  Blood transfusion/ needle sharing 51 71 81 0.000 44 58 60 0.016
  Mother-to-child 64 83 93 0.000 56 56 76 0.000
Necessity of partner examination/treatment         
  Gonorrhoea 96 97 99 0.310 95 97 100 0.047
  Syphilis 96 96 99 0.284 93 96 99 0.028
  Trichomonas 62 77 86 0.000 63 63 65 0.887
  Genital warts 82 86 96 0.017 77 69 76 0.231
  Chlamydia 50 64 78 0.000 47 46 54 0.292
Complications of STI if untreated         
  Infertility 96 95 99 0.333 88 95 94 0.052
  Ectopic pregnancy/cervical cancer 81 92 93 0.022 65 85 87 0.000
  Adverse pregnancy outcome 85 92 98 0.004 71 90 95 0.000
  Pelvic inflammation 52 65 79 0.000 36 50 49 0.017
Ways of STI prevention         
  Save sex including condom use 98 99 98 0.822 94 98 100 0.009
  Being faithful** 93 96 97 0.186 81 90 97 0.000
  1. *Cochran test for verifying the proportion trend of correct answers before, during and after the intervention, with p-value adjusted for ICC.
  2. **Maintaining sexual loyalty to one's spouse or lover.