Margit Kooijman

Prognostic factors | 89 functional status, duration of complaints, neck complaints, physical workload, or dominant shoulder affected. M. Positive if standardised questionnaires or objective measurements were used at baseline of at least 1 of the following 6 potential prognostic factors: depression, somatisation, distress, fear and avoidance, coping strategies, or psychosocial workrelated factors (social support, psychological demands, and job decision latitude). N. Positive if frequency, percentage or mean, median (Inter Quartile Range) and standard deviation/CI (confidence interval) were reported for the most important outcome measures. O. Positive if frequency, percentage or mean, median (Inter Quartile Range) and standard deviation/CI were reported for the most important prognostic factors. P. Positive if univariate crude estimates were provided for the association of a prognostic factor with outcome. Q. Attempt is made to determine a set of prognostic factors with the highest prognostic value. R. Positive if the number of cases in the multivariate analysis was at least ten times the number of independent variables in the analysis (Altman, 1991)