A factor analytic study of the 60-item general health questionnaire in Australian community and general practice...

A factor analytic study of responses to a 60-item General Health Questionnaire of people in general practice and in the community in Perth, Western Australia, was performed. Five identified factors, accounting for 46% of the variance, were very similar to factors identified in an English general practice study but differed from two published Australian studies. The statistic of a relative GHQ profile was generated to compare these factors in various sets of data. There was no significant difference between the relative GHQ profile in the community and general practice data or between demographic factors such as sex, social class and country of birth. The major positive finding was of an excess of overtly psychological factors in 'cases' compared with an excess of more physical factors in 'non-cases'.