1983 Volume 21 Issue 3 Pages 199-207
The Medical Data Index (MDI) health questionnaire was given to 924 women clerks engaged in Visual Display Terminal (VDT) work in the head or branch offices of a city bank. In order to estimate the interrelation and relevance of the health complaints of the 150 MDI items, characteristics of the 34 main complaints of these women were analyzed by means of tetrachoric correlation coefficients and factor analysis.
The tendency of many complaints considered to be related to mental strain and eye impairment was the dominant factor in the sense that the eigen value of this factor was extremely high.