Do work ability and life satisfaction matter for return to work? Predictive ability of the work ability index and life satisfaction questionnaire among women with long-term musculoskeletal pain

Table 3 Area under the receiver operating characteristic curve for the WAI and the LiSat-11 at baseline. Sensitivity and specificity of the instruments for detecting RTW

	n	AUC	p-value	95% CI	Cut-off point	Sensitivity	Specificity
WAI^a	207	0.78	< 0.001	0.70–0.86
95% of sensitivity					15	0.95	0.34
Max (sensitivity + specificity)					23	0.66	0.77
95% of specificity					29	0.34	0.95
LiSat-11^b	168	0.59	0.15	0.47–0.70
95% of sensitivity					2.7	0.95	0.12
Max (sensitivity + specificity)					4.5	0.40	0.77
95% of specificity					5.4	0.07	0.95

WAI scale 7–49 points (higher values indicate greater work ability); LiSat-11 scale 1–6 points (higher values indicate greater well-being)
Using the cut-off points means that the values strictly below the cut-off point are classified as NRTW
RTW return to work, AUC Area under curve, CI Confidence Interval, n number of observations, Max the maximum value of the sensitivity and specificity
^aWAI Work Ability Index
^bLiSat-11 Life Satisfaction questionnaire

ISSN: 1471-2458