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Table 1 Exploratory factor analysis of items from the main cognitive representation dimensions among newly diagnosed HIV-positive MSM

From: How newly diagnosed HIV-positive men who have sex with men look at HIV/AIDS – validation of the Chinese version of the revised illness perception questionnaire

  Factor 1 Factor 2 Factor 3 Factor 4 Factor 5 Factor 6 Original subscale
Treatment Control
 Anti HIV medication can control your condition 0.77 0.09 0.01 −0.08 0.22 −0.11 TC
 Anti-HIV treatment will be effective in controlling your illness 0.74 −0.12 0.00 0.00 0.16 0.18 TC
 Anti-HIV medication can control the progress of your HIV infection 0.73 0.12 −0.03 −0.03 −0.02 −0.24 TC
 The negative effects of your illness can be prevented by anti HIV therapy 0.69 0.06 0.07 0.05 0.27 −0.02 TC
 You have the power to influence the course of your condition 0.43 −0.23 0.13 −0.35 0.39 0.08 PC
Timeline-acute/chronic
 Your condition is likely to be permanent rather than temporary 0.18 0.72 0.00 0.09 0.09 −0.02 TA/C
 You expect to have HIV for the rest of your life 0.25 0.72 −0.08 0.13 −0.12 0.06 TA/C
 There is very little that can be done to improve your condition −0.10 0.68 0.16 0.19 0.04 −0.02 TC
 You will get ill when the time comes whether you are taking anti HIV medication or not −0.20 0.49 0.25 0.23 −0.09 0.13 TC
 Your condition will be in the same situation in a long time 0.16 0.45 −0.11 −0.11 0.42 0.20 TA/C
 Your condition will improve in time 0.32 −0.58 0.15 −0.08 0.33 0.17 TA/C
Illness Coherence
 Having HIV does not make any sense to you −0.09 −0.07 0.82 0.02 −0.03 0.11 IC
 You don’t understand enough about HIV 0.11 0.07 0.77 0.07 −0.15 0.06 IC
 The HIV virus is a mystery to you 0.02 0.06 0.67 0.18 0.21 0.10 IC
 The symptoms of your condition are puzzling to you 0.12 0.06 0.58 0.39 0.10 0.23 IC
Consequence
 Having HIV has major consequences on your life −0.10 0.27 0.30 0.72 0.04 0.00 CO
 The fact that you have HIV causes difficulties for those who are close to you 0.12 0.01 0.13 0.72 0.05 0.12 CO
 Having HIV strongly affects the way others see you −0.03 0.28 0.17 0.57 0.01 0.08 CO
 Having HIV does not have much effect on your life 0.16 −0.07 0.08 −0.65 0.25 0.18 CO
Personal Control
 There is a lot which you can do to control your condition 0.21 −0.22 0.08 −0.17 0.72 −0.09 PC
 What you do can determine whether your condition gets better or worse 0.19 0.12 0.11 0.00 0.69 −0.30 PC
 The course of your condition depends on you 0.28 0.01 −0.27 0.27 0.56 0.03 PC
Helplessness
 Nothing you do will affect your illness −0.03 −0.02 0.15 0.03 −0.07 0.78 PC
 Your actions will have no affect on the outcome of your condition −0.08 0.09 0.17 0.03 −0.08 0.74 PC
Cronbach’s Alpha 0.76 0.69 0.76 0.70 0.61 0.55  
Initial Eigenvalues 4.11 3.61 2.52 1.46 1.18 1.07  
Cumulative % of variance explained 17.13 32.17 42.65 48.75 53.65 58.09  
Item-total correlation coefficients 0.42-0.64 0.21-0.53 0.53-0.59 0.43-0.65 0.34-0.46 0.38  
  1. TC Treatment Control, TA/C Timeline-acute/chronic, IC Illness Coherence, CO Consequence, PC Personal Control
  2. Deleted items included: “You have a clear picture or understanding of your condition” (Illness Coherence), “Your illness is a serious condition” (Consequence), “Having HIV has serious financial consequences” (Consequence), “There is nothing which can help your condition” (Personal Control)