Obstructive Sleep Apnea Patient-Oriented Severity Index

Name of Questionnaire

Obstructive Sleep Apnea Patient-Oriented Severity Index (OSAPOSI)

Description

A condition-specific HRQL measure based on semi-structured interviews to identify the physical, functional, and emotional consequences of OSA and its treatment.

Developer

JF Piccirillo, GA Gates, DL White, KB Schectman

Address

Jay F. Piccirillo
Clinical Outcomes Research Office
Department of Otolaryngology
Washington University School of Medicine
Box 8115, 517 S. Euclid Avenue
St. Louis, MO 63110

Cost & availability

Contact JF Piccirillo for permission for use.

Administration

Self

Time to complete

Not reported

Number of items

32

Domains & categories

5 subscales

Name of categories/domains

Sleep problems, awake problems, medical problems, emotional and personal problems, occupational impact

Scaling of items

Magnitude of the problem (0 to 5, from no problem to "bad as can be")

Importance of the problem (1 to 4, from not important to extremely important)

Scoring

Symptom-impact score: product of the magnitude and the importance. The higher the score, the worse the HRQL. Scores range from 0 to 20 per item and from 0 to 640 for the instrument.

Reliability

Validity

Based on semi-structured patient interviews, assuring content validity ¹ . Concurrent validity demonstrated by correlation with global health rating ¹ .

Responsiveness

Reported; standardized response mean (SRM) and effect size estimation (ES)

Minimally important difference

An increase or decrease in OSAPOSI score of 50% is considered clinically-meaningful.

Research use

Reported ¹

Clinical use

Not reported

Language

Original: English

References

1. Piccirillo JF, Gates GA, White DL, Schectman KB. Obstructive sleep apnea treatment outcomes pilot study. Otolaryngol Head Neck Surg 1998;118:833-44.

Date of information

March 1999

Comments from developer

Yes (July 1998)