Translation and international validation of the Colostomy Impact score

Surviving rectal cancer at the cost of a colostomy: global survey of long-term health-related quality of life in 10 countries

BACKGROUND

Colorectal cancer management may require an ostomy formation; however, a stoma may negatively impact health-related quality of life (HRQoL). This study aimed to compare generic and stoma-specific HRQoL in patients with a permanent colostomy after rectal cancer across different countries.

METHOD

A cross-sectional cohorts of patients with a colostomy after rectal cancer in Denmark, Sweden, Spain, the Netherlands, China, Portugal, Australia, Lithuania, Egypt, and Israel were invited to complete questionnaires regarding demographic and socioeconomic factors along with the Colostomy Impact (CI) score, European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ-C30) and five anchor questions assessing colostomy impact on HRQoL. The background characteristics of the cohorts from each country were compared and generic HRQoL was measured with the EORTC QLQ-C30 presented for the total cohort. Results were compared with normative data of reference European populations. The predictors of reduced HRQoL were investigated by multivariable logistic regression, including demographic and socioeconomic factors and stoma-related problems.

RESULTS

A total of 2557 patients were included. Response rates varied between 51-93 per cent. Mean time from stoma creation was 2.5-6.2 (range 1.1-39.2) years. A total of 25.8 per cent of patients reported that their colostomy impairs their HRQoL 'some'/'a lot'. This group had significantly unfavourable scores across all EORTC subscales compared with patients reporting 'no'/'a little' impaired HRQoL. Generic HRQoL differed significantly between countries, but resembled the HRQoL of reference populations. Multivariable logistic regression showed that stoma dysfunction, including high CI score (OR 3.32), financial burden from the stoma (OR 1.98), unemployment (OR 2.74), being single/widowed (OR 1.35) and young age (OR 1.01 per year) predicted reduced stoma-related HRQoL.

CONCLUSION

Overall HRQoL is preserved in patients with a colostomy after rectal cancer, but a quarter of the patients interviewed reported impaired HRQoL. Differences among several countries were reported and socioeconomic factors correlated with reduced quality of life.

Patient reported outcome measures assessing quality of life in patients with an intestinal stoma: A systematic review

AIM

Living with a stoma can greatly influence quality of life. The purpose of this systematic review was to identify all patient reported outcome measures (PROMs) assessing health related quality of life (HRQoL) or similar constructs related to an intestinal stoma and to evaluate their level of validation.

METHODS

The study was reported in line with PRISMA guidelines. The protocol was registered in PROSPERO prior to the study. Eligible studies were any study investigating psychometric properties of a stoma-specific PROM. The databases MedLine, Embase, CINAHL and Cochrane Libraries were searched for eligible studies. Studies were screened on title and abstract, then full-text for eligibility. Data extraction on the study populations, PROM characteristics, psychometric properties as well as quality assessment using the COSMIN Risk of Bias checklist was performed.

RESULTS

In total, 40 studies were included concerning the development and/or validation of 21 PROMs. For most PROMs, few psychometric properties were assessed. In general, quality of content validity was poor, quality of construct validity and reliability was good. Assessment of responsiveness was lacking.

CONCLUSION

This systematic review offers an overview of existing PROMs measuring stoma-related HRQoL and their psychometric properties. A large number of PROMs exist and their measures overlap considerably. The PROMs generally have a low level of validation, emphasizing the need for future studies to further validate existing PROMs, rather than developing new ones.

Life with a stoma across five European countries-a cross-sectional study on long-term rectal cancer survivors

PURPOSE

Stoma-related problems are known to be important to patients and potentially affect everyday life. The prevalence of stoma-related problems in rectal cancer survivors remains undetermined. This study aimed to examine aspects of life with a long-term stoma, stoma management, and stoma-related problems and explore the impact of stoma-related problems on daily life.

METHODS

In total, 2262 patients from 5 European countries completed a multidimensional survey. Stoma-related problems were assessed using the Colostomy Impact score. Multivariable regression analysis, after adjusting for potential confounding factors, provided odds ratio (OR) and 95% confidence intervals (CI) for stoma-related problems' association with restrictions in daily life.

RESULTS

The 2262 rectal cancer survivors completed the questionnaire at a median of 5.4 years (interquartile range 3.8-7.6) after stoma formation. In the total sample, leakage (58%) and troublesome odour (55%) were most prevalent followed by skin problems (27%) and pain (21%). Stoma-related problems were more prevalent in patients with parastomal bulging. A total of 431 (19%) reported feeling restricted in daily activities in life with a stoma. Leakage, odour, skin problems, stool consistency, and frequent appliance changes were significantly associated with restrictions in daily life. The highest risk of experiencing restrictions was seen for patients having odour (OR 2.74 [95% CI: 1.99-3.78]) more than once a week and skin problems (OR 1.77 [95% CI: 1.38-2.27]).

CONCLUSION

In this large cohort with rectal cancer, stoma-related problems were highly prevalent and impacted daily life. Supportive care strategies should entail outreach to patients with a long-term stoma.

Validation of the Chinese version of the colostomy impact score in rectal cancer patients with permanent colostomy

OBJECTIVE

To test the reliability and validity of the Chinese version of the colostomy impact score (CIS) among patients with a permanent colostomy in China.

METHODS

A total of 218 patients completed the survey either in the clinic or remotely and mailed their responses. Reliability was estimated based on test-retest reliability. Validity was evaluated based on content validity, construct validity, and discriminative validity. The sensitivity and specificity of the score were analysed. The area under the curve was analysed by drawing the receiver-operating characteristic (ROC) curve; the optimal cutoff point was calculated to assess the impact of a stoma on domestic patients.

RESULTS

The test-retest reliability of the CIS was 0.967. The content validity was 0.98, and the construct and discriminative validities were good; sensitivity, specificity, and area under the ROC curve were 100, 48.53, and 0.806%, respectively. The optimal cutoff point for the Chinese version of the Colostomy Impact Score was 11.5.

CONCLUSIONS

The Chinese version of the CIS indicated good reliability and validity, making it suitable for the evaluation of the impact of a permanent colostomy.