Attachment L-3

Attachment L-3.docx

Musculoskeletal Disorder (MSD) Intervention Effectiveness in Wholesale/ Retail Trade Operations

Attachment L-3

OMB: 0920-0907

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Attachment L-3:


Descriptions of Outcome Measures for MSD Intervention Study


OI: MSD Symptoms (Individual employee level)

    • Rated by employees impacted by target interventions

    • Collected at baseline and every 3 months from baseline through completion

    • Participants will also be asked to report severe episodes of back or shoulder pain that occurred within the last 3 months

    • Ordinal data (but often treated as continuous when scores are averaged)


Label

Description

Comments

OIa

--NASS Lumbar Spine Outcome Assessment Instrument

- 17 items with a 6-point response scale: None of the time (=1) - all the time (=6); not at all bothersome (=1) - extremely bothersome (=6)


Notes: Factor analysis (Daltory et al, 1996) has identified two scales:
1) Pain & Disability scale: items on frequency and bothersomeness of back pain, plus nine items on disability because of pain, for a total of 11 items (questions 1a-b, 5-13). The mean score of this scale will be calculated. (OIa-1)


2) Neurogenic Symptom scale: six items on frequency and bothersomeness of leg or foot pain, numbness, and tingling (questions 4a-b, 5a-b, 6a-b). The mean score of this scale will be calculated. (OIa-2)

The NASS outcome has been found to have acceptability, high re-test reliability, internal reliability, and validity for low back pain and disability (Daltroy et al 1996; Schochat et al 2000; Pose et al 1999; Padua et al 2001; Bosković et al 2009; Schneider et al 2007; Schluessmann et al 2009; Sigl et al 2006; Weigl et al 2006; Schaeren et al 2005).


See Attachment H-1 for a copy of the NASS instrument.


Primary outcome


Example null hypotheses:


OIa-1: There will be no difference between

mean Pain & Disability scale score ratios (pre/ post intervention scores) when groups are compared (focusing on time period Baseline A to B)


OIa-2: Duration of intervention will not be significantly associated with post mean back Pain & Disability scale score declines


OIb

--Quick DASH Outcome Measure with Work Module Option

DASH stands for "Disabilities of the Arm, Shoulder and Hand." The Quick DASH Outcome Measure is a self-reported questionnaire designed to measure physical function and symptoms in people with any of several MSD of the upper limb. The Quick DASH Outcome Measure is scored in two components: the disability/symptom section (11 items, scored 1-5) and the optional Work section (4 items, scored 1-5). (Beaton et al 2001)

See Attachment H-2 for a copy of the Quick DASH instrument.


Secondary outcome


Example null hypotheses:


OIb-1: There will be no difference between mean DASH disability/symptom score ratios (pre/ post intervention scores) when groups are compared (focusing on time period Baseline A to B)


OIb-2: Duration of intervention will not be significantly associated with post mean DASH disability/symptom score declines

OIc

--Borg CR-10 RPE (Ratings of perceived exertion) (Borg, 1982)


Please rate the OVERALL PHYSICAL EFFORT level demanded by your job today. 0 = Nothing at all; 0.5 = Extremely weak (just noticeable); 1 = Very Weak; 2 = Weak (light); 3 = Moderate; 4 ; 5 = Strong; 6; 7 = Very Strong; 8; 9; 10 = Extremely strong (almost max); . = Maximal;


Secondary outcome

OE: WC data, Quality, Productivity (Establishment level)

    • Rates will be calculated quarterly (4 times per year)



Label

Description

Comments

OEa

--Workers compensation (WC) data (collected for all participating establishments, from 2 years pre intervention through study duration)

  • Intervention specific and general establishment

    • WC MSD case incidence (per 100 FTE)

    • WC MSD lost time case incidence (per 100 FTE)

    • WC MSD cost per 100 FTE*


*Analysis of financial related WC outcomes will be deferred until Fall 2015 to allow for proper loss development of claims.


Secondary outcome

OEb

--Absenteeism measures TBD*

  • Intervention specific and general establishment

  • *Will be identified a priori

Secondary outcome

OEc

--Quality measures TBD*

  • Intervention specific and general establishment

  • *Will be identified a priori

Secondary outcome

OEd

--Productivity measures TBD*

  • Intervention specific and general establishment

  • *Will be identified a priori

Secondary outcome



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