Table A2.

Relationship between visual discomfort, MSDs, ICT usage patterns, and preventive measures. Initial model for MANOVA.

Dependent Variables	Factors	Covariates
Visual discomfort MSDs	ICT usage pattern TM1. Appropriate devices or equipment for the task being performed TM2. The company carried out a specific occupational hazard assessment for working with these devices TM3. Furniture that allows adopting an adequate posture to perform the task TM4. Lecterns, footrests, or other contributing elements to improve posture in front of the computer TM5. Accessory Element(s) (Lecterns, stands ...) in order to adopt an appropriate position when using smartphones/tablets TRM1. General training on prevention of occupational hazards TRM2. Training related to computer use TRM3. Training related to the use of other devices ICT usage pattern TM1 ICT usage pattern TM2 ICT usage pattern TM3 ICT usage pattern TM4 ICT usage pattern TM5 ICT usage pattern TRM1 ICT usage pattern TRM2 ICT usage pattern TRM3	Age Physical activity outside the work setting Average pause time Ratio pauses per hour Average pause time ratio pauses per hour

Abbreviations: MSDs: Musculoskeletal Diseases. TM: Technical measure. TRM: Training measure.