Reduced version of the Activity Measure for Post-Acute Care (AM-PAC) for inpatients, "6-clicks": Brazilian-Portuguese cross-cultural adaptation and measurement properties.

Background: The "6-clicks" is the reduced version of the Activity Measure for Post-Acute Care for inpatients that assesses limitations in basic mobility, daily activity, and applied cognitive, simply and quickly.

Objective: Cross-culturally adapt the "6-clicks" into Brazilian-Portuguese and verify its measurement properties.

Methods: Cross-cultural adaptation followed recommendations from international guidelines. Reliability indices, standard error of measurement and minimum detectable difference were calculated. Participants included 13 professionals, 13 patients and 13 companions. Test of measurement properties involved 101 patients' of both sexes, hospitalized in the infirmary, under physical therapy care, able to understand and respond to commands and with no discharge expectation. Their 30 companions were also included.

Results: Minor changes implemented to the original version. The three domains showed adequate internal consistency (α>0.65). Inter-rater reliability (n=50) and test-retest reliability, when administer to patients (n=51) and to companions (n=30), showed good for basic mobility domain (ICC=0.81, 0.83 and 0.82, respectively), good to moderate for daily activity (ICC=0.78 and ICC=0.71 and 0.82, respectively) and moderate to poor for applied cognitive (ICC=0.64, 0.36 and ICC=0.63), respectively. The highest agreements among patients/companions were also in basic mobility. Standard error of measurement ranged from 2.03 to 2.64 while the minimum detectable difference ranged from 5.63 to 7.32.

Conclusion: Translated and adapted Brazilian version of the "6-clicks" showed acceptable measurement properties. The functional data provided by the instrument could be used to enhance care and help treatment follow-up.