PMID- 29077945
OWN - NLM
STAT- MEDLINE
DCOM- 20171113
LR  - 20220316
IS  - 1538-6724 (Electronic)
IS  - 0031-9023 (Linking)
VI  - 97
IP  - 11
DP  - 2017 Nov 1
TI  - Minimally Clinically Important Change in the Activity Measure for Post-Acute Care 
      (AM-PAC), a Generic Patient-Reported Outcome Tool, in People With Low Back Pain.
PG  - 1094-1102
LID - 10.1093/ptj/pzx083 [doi]
AB  - BACKGROUND: The Activity Measure for Post-Acute Care (AM-PAC) is a generic metric 
      of patient-reported functional status. The minimal clinically important 
      difference (MCID) in the AM-PAC score has not been determined. OBJECTIVE: The 
      study objective was to determine the MCID for AM-PAC in people with low back 
      pain. DESIGN: This was a retrospective cohort study. METHODS: Anchor-based and 
      distribution-based methods were used to estimate the MCID. The Modified Low Back 
      Pain Disability Questionnaire was used as the anchor. Adults who had a primary 
      ICD-9 code for low back pain in at least 1 outpatient physical therapist visit 
      during an episode of care and who completed both the AM-PAC and the Modified Low 
      Back Pain Disability Questionnaire in at least 2 visits during the care episode 
      were included. The MCID was calculated for the AM-PAC basic mobility version as 
      well its adapted version, which the Cleveland Clinic uses for patients 65 years 
      old or older. RESULTS: A total of 1,271 participants were eligible for study. For 
      the AM-PAC basic mobility version, anchor-based methods yielded MCID estimates of 
      between 3.4 and 5.1, whereas distribution-based methods yielded estimates of 1.7 
      to 4.2. The minimal detectable change (MDC) for the AM-PAC basic mobility version 
      was 3.3. For the adapted AM-PAC basic mobility version, the MCID was estimated to 
      be between 2.9 and 4.0 via anchor-based methods and between 1.2 to 3.5 via 
      distribution-based methods. The MDC for the adapted AM-PAC basic mobility version 
      was 3.5. LIMITATIONS: The estimated MCID was designed for people with low back 
      pain only. CONCLUSIONS: The MCID ranged from 3.3 to 5.1 for the AM-PAC basic 
      mobility version and 3.5 to 4 for the adapted version, with the MDC as the lower 
      limit. Changes in the AM-PAC for people with low back pain may be interpreted 
      using the estimated MCID. Future studies are needed to determine the AM-PAC MCID 
      for populations other than those with low back pain.
CI  - (c) 2017 American Physical Therapy Association
FAU - Lee, Natalie
AU  - Lee N
AD  - Medicine Institute, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195.
FAU - Thompson, Nicolas R
AU  - Thompson NR
AD  - Neurological Institute, Cleveland Clinic.
FAU - Passek, Sandra
AU  - Passek S
AD  - Physical Medicine and Rehabilitation, Cleveland Clinic.
FAU - Stilphen, Mary
AU  - Stilphen M
AD  - Rehabilitation and Sports Therapy, Cleveland Clinic.
FAU - Katzan, Irene L
AU  - Katzan IL
AD  - Neurological Institute, Cleveland Clinic.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Phys Ther
JT  - Physical therapy
JID - 0022623
SB  - IM
MH  - Adult
MH  - Disability Evaluation
MH  - *Exercise
MH  - Female
MH  - Humans
MH  - Low Back Pain/*physiopathology/psychology/*therapy
MH  - Male
MH  - Middle Aged
MH  - *Minimal Clinically Important Difference
MH  - Pain Measurement
MH  - Patient Reported Outcome Measures
MH  - Retrospective Studies
MH  - *Subacute Care
MH  - Surveys and Questionnaires
EDAT- 2017/10/28 06:00
MHDA- 2017/11/14 06:00
CRDT- 2017/10/28 06:00
PHST- 2017/01/13 00:00 [received]
PHST- 2017/08/14 00:00 [accepted]
PHST- 2017/10/28 06:00 [pubmed]
PHST- 2017/11/14 06:00 [medline]
PHST- 2017/10/28 06:00 [entrez]
AID - 4082916 [pii]
AID - 10.1093/ptj/pzx083 [doi]
PST - ppublish
SO  - Phys Ther. 2017 Nov 1;97(11):1094-1102. doi: 10.1093/ptj/pzx083.