Table 2

 Results of the methodological quality assessment

Cohort (first author)Study designExposure and outcome assessmentData analysis
Participation rateResponse at follow-upDuration computer useErgonomic factorsPsychosocial factorsPhysical factors leisure timeExposure changeOutcomeStatistical modelConfoundingStatistical powerScore* (%)
BIT, Behavioural Inattention Test; NUDATA, Neck and Upper extremity Disorders Among Technical Assistants.
*The percentage of positive items over the total number of items.
†+, positive; −, negative; ?, unclear (insufficient information available).
BIT
    Jensen20?†????+++++45
    Juul-Kristensen21?????+++++45
NUDATA
    Andersen22?+???++++++64
    Kryger23?+???+?++++55
    Brandt24?+???+?++++55
    Lassen25?+???+?++++55
Bergqvist et al
    Bergqvist19++????+?++45
Marcus et al
    Marcus26++?+?++?+++73
Korhonen et al
    Korhonen27+????+?++++55
Positive (%)3367011067567810089100