Abstract
Purpose
Few studies have evaluated the impact of a stoma on patient quality of life because of a lack of specific validated measures. This study documents the development and initial application of a Stoma Quality of Life Scale.
Methods
Content experts generated initial questions. Patient focus groups were conducted to ensure that the questions addressed all stoma-related issues considered important by patients. Responses from pilot groups allowed refinement to produce the final measure, the Stoma Quality of Life Scale, a 21-item questionnaire. Three scales are featured: Work/Social Function (6 items), Sexuality/Body Image (5 items), and Stoma Function (6 items). In addition, one item (scored separately) measures financial impact, one measures skin irritation, and two measure overall satisfaction. This questionnaire was administered to 100 consecutive ostomy patients, and readministered three weeks later. Reliability was assessed by using coefficient alpha for internal consistency and intraclass correlation coefficient for test-retest reproducibility. To test validity in extreme groups, scores were compared for patients with improved quality of life vs. those whose stoma worsened their quality of life. To evaluate convergent validity, we analyzed correlation of instrument scales with the SF12.
Results
The Stoma Quality of Life scales demonstrated adequate test-retest reproducibility (intraclass correlation coefficient >0.8) and acceptable internal consistency (coefficient alpha approximately 0.8). The scales were capable of discriminating between patients with better and worse quality of life after stoma formation (P < 0.02 for all scales). The Stoma Quality of Life scales significantly correlated (range, 0.12–0.75) with the Physical and Mental Health Composite Scale Scores of the SF-12.
Conclusions
The Stoma Quality of Life Scale demonstrates reasonable psychometric properties for measuring quality of life in patients with stomas. Further studies are needed to refine the instrument.
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Poster presentation at Digestive Disease Week, Orlando, Florida, May 17 to 22, 2003.
Appendices
The Stoma Quality of Life Scale (SQOLS) Questionnaire
We would like to use your opinions and experiences to help us improve the care of individuals with ostomies. Please read each statement and decide the way it applies to you. Some questions may seem to be more important to you than others; however, try to answer all questions to the best of your ability. Your responses are confidential.
Part 1
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1.
Rate your overall satisfaction with your life in general right now on a scale of 0 to 100, with 0 being totally unsatisfied and 100 being totally satisfied.
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2.
Rate your overall satisfaction with your life in general during the last month on a scale of 0 to 100, with 0 being totally unsatisfied and 100 being totally satisfied.
Part 2
Never (1) Seldom (2) Occasionally (3) Frequently (4) Always (5)
For each of the following questions, please choose a number from the choices above that corresponds to your answer.
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3.
I am able to participate in hobbies that I enjoy. _____
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4.
I am able to go out with friends. _____
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5.
My stoma interferes with my ability to work or attend school. _____
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6.
I worry about traveling because of my stoma. _____
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7.
I enjoy sexual activity. _____
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8.
I feel attractive. _____
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9.
My sexual partner is bothered by my stoma. _____
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10.
It bothers me if others are aware I have a stoma. _____
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11.
I worry about lack of privacy when I need to empty my pouch. _____
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12.
I feel comfortable in my clothing. _____
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13.
I am satisfied with the foods I eat. _____
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14.
I have financial concerns regarding my ostomy supplies. _____
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15.
I have problems with odor. _____
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16.
I am able to share my feelings and concerns about my ostomy with a family member or friend. _____
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17.
I am embarrassed by gas (noises or rapid filling of bag). _____
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18.
I worry my ostomy appliance will leak. _____
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19.
I am bothered by skin irritation around the stoma. _____
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20.
Social situations make me feel anxious. _____
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21.
I perform the same household and family duties. _____
Appendix 2 Suggested Scoring of the SQOLS
Part 1
Overall satisfaction with life is scored from 0 to 100. Question 1 reflects current satisfaction and may be more useful when changes over short periods of time are important. Question 2 reflects satisfaction during the previous month.
Part 2
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Work/Social Function Scale = 25 × (12 + Que3 + Que4 − Que5 − Que6 − Que20 + Que21)/6
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Sexuality/Body Image = 25 × (1 + Que7 + Que8 − Que9 + Que12 + Que16)/5
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Stoma Function = 25 × (24 − Que10 − Que11 + Que13 − Que15 − Que17 − Que18)/6
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Financial Concerns = 25 × (5 − Que14)
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Skin Irritation = 25 × (5 − Que19)
If any two questions are missing for a subscale, the entire subscale should be set to missing. If one is missing, the scale score can be prorated.
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Baxter, N.N., Novotny, P.J., Jacobson, T. et al. A Stoma Quality of Life Scale. Dis Colon Rectum 49, 205–212 (2006). https://doi.org/10.1007/s10350-005-0275-6
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DOI: https://doi.org/10.1007/s10350-005-0275-6