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Page 11 of 11  Original Research


              APPENDIX 1: Structural equation modelling models.


                                                         Standard PLS algorithm
                                                             Treatment taking behaviour
                    [+]                      0.007                   [+]
                                                                    0.141
                   Age
                                                               –0.043
                                             –0.103                                       –0.165          Quality of life
                                                                                                             [+]
                    [+]                      0.023             –0.170                                       0.347
                                0.002
                  Gender                                 –0.337
                                             0.042              0.044
                                –0.020                          0.061          0.427
                    [+]                      0.074             0.072
                                                                                           0.143
                                0.142                        0.027                                          –0.098
               Year on treatment              [+]
                                             0.041             –0.052
                                –0.090
                                           AdoIHIVSM          0.064
                    [+]                                             0.016                –0.056
                                             –0.049
                                –0.070
               Frequency of doses                              0.353
                                             –0.165
                                                                                                             [+]
                                –0.039
                                                                0.002                                       0.187
                    [+]                      –0.017
                                                                                                         Viral suppression
               Knowledge of route                                 –0.015
                                             0.002                                       0.142

                    [+]
                                             0.080                     [+]
                                                                      0.195
                 With parent
                                                                   Sexual behaviour
              FIGURE 1-A1: Model with all control paths.

                              Standard PLS algorithm
                         Treatment taking behaviour
                               [+]
                               0.116
                                          –0.141    Quality of life
                                                        [+]
                                                       0.304
                       –0.340
                                  0.451
                                           0.174
                                                      –0.076
                 [+]
               AdoIHIVSM
                                         –0.088
                       –0.032                          [+]
                                                       0.061
                                                   Viral suppression
                                            0.146
                                [+]
                                0.001

                             Sexual behaviour
              FIGURE 2-A1: Model without controls.


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