Validation of the Amharic version of the Pelvic Organ Prolapse Symptom Score (POP-SS)

Reliability and validity of the Sidaamu Afoo version of the pelvic organ prolapse symptom score questionnaire

BACKGROUND

Both for clinical and research purposes, it is critical that clinicians and researchers use a tool that is trans-culturally adapted and tested for its psychometric properties. The English version of the Pelvic Organ Prolapse Symptom Score (POP-SS) questionnaire was developed in 2000. Since then it has been translated into other languages and verified. However, the tool has not been adapted for use in Sidaamu Afoo language in the Sidama Region of Ethiopia.

OBJECTIVE

This study aimed to translate and adapt the Pelvic Organ Prolapse Symptom Score questionnaire into Sidaamu Afoo and evaluate its psychometric properties.

METHODS

A total of 100 women with symptomatic prolapse completed version-2 of the POP-SS questionnaire during the first round of interviews, and 61 of them completed the questionnaire during the second round of interviews (to establish the test-retest reliability). We adapted the scale translation process recommended by Beaton and his colleagues. The content validity was assessed using the content validity index and the construct validity was done based on exploratory factor analysis using the principal component analysis model. The criterion validity was evaluated by using the Kruskal-Wallis test based on stages of the prolapse established via pelvic examination. The internal consistency reliability of the scale was assessed using Cronbach's alpha value, and test-retest reliability was evaluated using the intraclass correlation coefficient.

RESULTS

The questionnaire was successfully translated to Sidaamu Afoo, and achieved a good content validity index (0.88), high internal consistency (Cronbach's alpha of 0.79), and test-retest reliability (an intraclass correlation coefficient of 0.83). The exploratory factor analysis revealed two factors based on an eigenvalue of 1. The two factors explained 70.6% of the common variance, and each item loaded well (0.61 to 0.92) to its corresponding factor. There is a significant difference in the median score of prolapse symptoms across different stages of prolapse (Kruskal-Wallis χ², 17.5, p < 0.001).

CONCLUSION

The Sidaamu Afoo version of the POP-SS tool is valid and reliable. Further studies that involve a balanced number of women in each stage of prolapse are needed to avoid the ceiling and floor effects.

Prevalence of symptomatic pelvic organ prolapse and associated factors in Southern Nations, Nationalities, People's Region referral hospitals, Ethiopia

INTRODUCTION AND HYPOTHESIS

Pelvic organ prolapse is one of the major causes of morbidity among women that affect their quality of life. Despite the severity of the problem, there is limited information in Ethiopia. Therefore, this study was aimed at assessing the prevalence of symptomatic POP and its associated factors.

METHODS

An institution-based cross-sectional study was carried out in the referral hospitals of Southern Nations, Nationalities, People's Region, Ethiopia. Women were initially interviewed about their prolapse symptoms using validated questionnaires, and if they answered yes to one or more of the questions, they were examined by gynecologists using simplified POP quantification. Pelvic examination results and patient-reported symptoms were used to determine symptomatic POP. A multivariate logistic regression analysis model was used to identify factors associated with symptomatic prolapse.

RESULTS

A total of 1,196 respondents were included in this study. The prevalence of symptomatic POP was found to be 20.1%. Age of women ≥55 years (AOR=8.39; 95% CI 3.41-20.62), carrying heavy objects for ≥ 5 h (AOR= 5.18; 95% CI 2.51-10.69), parity ≥4 times (AOR=2.98; 95% CI 1.60-5.53), history of home delivery (AOR= 2.90; 95% CI 1.50-5.61), giving birth through assisted vaginal delivery (AOR=5.01; 95% CI 1.73-14.53), history of chronic constipation (AOR=2.66; 95% CI 1.38-5.15), and a history of a chronic cough (AOR=9.18; 95% CI 4.52-18.61) were associated with symptomatic POP.

CONCLUSIONS

In this study the prevalence of symptomatic POP is high. Older age, long hours of carrying heavy objects, a high parity, last birth through assisted vaginal delivery, a history of home delivery, a history of chronic constipation, and a history of a chronic cough were found to be associated with symptomatic POP.

Translating the Pelvic Organ Prolapse Score into Samoan using a modified back translation methodology

Background

Although Samoan women have a high prevalence of obesity and multiple parity which are risk factors of pelvic organ prolapse, there is no prevalence data on this condition.

Aims

Translate the Pelvic Organ Prolapse-Symptoms Score (POP-SS) from English into Samoan,

Materials and methods

Standardised methods for translating questionnaires, individual face to face audio-recorded interviews in which women completed the POP-SS using a Think Aloud method, analysis using a Framework approach.

Results

The POP-SS was successfully translated in to Samoan, an additional information leaflet was developed to support women’s understanding of what prolapse is, 14 Samoan women were recruited of which 13 were interviewed and completed the POP-SS, results of POP-SS (scores), results of think aloud, results in terms of research experience.

Conclusions

A Samoan version of the POP-SS is now available for further evaluation of its psychometric properties prior to wider use. The team continue to collaborate on their work on establishing the prevalence of prolapse whilst building local research capacity.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12905-022-01676-3.

Pelvic organ prolapse surgery and health-related quality of life: a follow-up study

BACKGROUND

Symptomatic prolapse impairs quality of life. Health-related quality of life (HRQoL) is considered an important outcome of pelvic organ prolapse (POP) surgery. However, it is rarely reported, and measures are inadequately used. Thus, studies reporting patient-reported surgical outcomes in low-income contexts are needed. This study aims to evaluate the effect of prolapse surgery on patient HRQoL and determine the predictive factors for change in HRQoL.

METHODS

A total of 215 patients who had prolapse stage III or IV were enrolled. Patients underwent vaginal native tissue repair, and their HRQoL was evaluated at baseline, 3 and 6 months postoperatively. Effect of surgery on subjective outcomes were measured using validated Prolapse Quality of Life (P-QoL-20), Prolapse Symptom Score (POP-SS), Body Image in Prolapse (BIPOP), Patient Health Questionnaire (PHQ-9), and Patient Global Index of Improvement (PGI-I) tools. A linear mixed-effect model was used to compare pre- and postoperative P-QoL scores and investigate potential predictors of the changes in P-QoL scores.

RESULTS

In total, 193 (89.7%) patients were eligible for analysis at 3 months, and 185 (86.0%) at 6 months. Participant's mean age was 49.3 ± 9.4 years. The majority of patients had prolapse stage III (81.9%) and underwent vaginal hysterectomy (55.3%). All domains of P-QoL improved significantly after surgery. Altogether more than 72% of patients reported clinically meaningful improvement in condition-specific quality of life measured with P-QoL-20 at 6 months. An improvement in POP-SS, BIPOP, and the PHQ-9 scores were also observed during both follow-up assessments. At 6 months after surgery, only 2.7% of patients reported the presence of bulge symptoms. A total of 97.8% of patients had reported improvement in comparison to the preoperative state, according to PGI-I. The change in P-QoL score after surgery was associated with the change in POP-SS, PHQ, BIPOP scores and marital status (p < 0.001). However, age, type of surgery, and prolapse stage were not associated with the improvement of P-QoL scores.

CONCLUSIONS

Surgical repair for prolapse effectively improves patient's HRQoL, and patient satisfaction is high. The result could be useful for patient counselling on the expected HRQoL outcomes of surgical treatment. Surgical service should be accessible for patients suffering from POP to improve HRQoL.

Validation of the Chinese version of the Pelvic Organ Prolapse Symptom Score (POP-SS)

OBJECTIVE

The objective of the present study was to translate the Pelvic Organ Prolapse Symptom Score (POP-SS) into Chinese and validate it in a population of Chinese women.

METHODS

The POP-SS questionnaire was translated into simplified Chinese language following an intercultural adaptation procedure. One hundred forty-six patients who met the inclusion criteria were recruited. Among the enrolled patients, 63 underwent surgery for POP and 50 underwent pessary management. They completed the questionnaires at baseline (T1), 1 to 2 weeks later (T2), and 3 months after intervention (T3). Evaluation for psychometric properties was conducted following with the COnsensus-based Standards for the selection of health Measurement INstruments checklist, including internal consistency, test-retest reliability, measurement error, content validity, criterion validity, construct validity, responsiveness, and interpretability.

RESULTS

The POP-SS was successfully translated into a Chinese version and achieved good content validity. Internal consistency (Cronbach's alpha = 0.796) was good, and test-retest reliability was excellent (intraclass correlation coefficients = 0.98; P < 0.001). The construct validity was verified by factor analysis and consistent with the theoretical structure of the original questionnaire. The POP-SS score was also significantly correlated with Pelvic Floor Distress Inventory-20 (Spearman's correlation coefficient = 0.89, P < 0.001). The confirmatory factor analysis identified two factors: physical symptoms and evacuation symptoms. The mean changes among the participants in very much better (9.80 ± 5.36) and much better (5.67 ± 2.99) groups were larger than those among the participants in the no change group (0.43 ± 2.07). The effect size responsiveness parameter in the much better group (>0.80) was larger than that in the no change group (<0.20). The values of the minimal important change for surgery and pessary groups were both larger than the smallest detectable change, indicating sufficient responsiveness.

CONCLUSIONS

The Chinese version of POP-SS is a reliable and valid instrument and has good sensitivity to change in the population studied.