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1.
J Pediatr Urol ; 11(4): 199.e1-7, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26189588

RESUMO

INTRODUCTION: Existing survey instruments for bowel dysfunction in the pediatric population are either parent-reported or focus on non-neurogenic bowel dysfunction. OBJECTIVE: The purpose of this study was to develop and validate an adolescent-reported survey to assess the severity of bowel dysfunction in spina bifida patients and examine its impact on quality of life (QOL). STUDY DESIGN: We performed a cross-sectional study of patients in our Myelodysplasia Program, aged 11-17 years, with a history of constipation and/or fecal incontinence (FI) from November 2010 to June 2013. Control patients, aged 11-17 years, were recruited from the stone clinic. Exclusion criteria were lack of English fluency, insufficient reading skills, or an incontinent fecal diversion. A 29-item version of the Adolescent Fecal Incontinence and Constipation Symptom Index (A-FICSI) was developed with five domains (Figure). Test re-test reliability and correlation with the total global health-related QOL score from the Parkin survey were measured using the Pearson correlation coefficient. A factor analysis model with four-fold correlations was tested. RESULTS: Of the 65 study-eligible individuals approached, 25 (11 boys) completed the A-FICSI (median age 12.6 years, IQR 11.8-14.7 years) and 17 completed another survey on urinary incontinence (64.6% response rate). Twenty-one control patients with nephrolithiasis completed the A-FICSI. Nine of the 25 completed a second administration of the survey. The mean correlation between repeated administrations of the survey was r = 0.43. There was a significant negative correlation between severity of constipation (r = -0.299, p < 0.05) and severity of FI (r = -0.316, p < 0.05) with the total Parkin QOL score. The Comparative Fit Index (CFI) was 0.864. Most items loaded significantly on their respective factors. Between-factor correlations were all significant (>0.30) in the predicted direction. Unstandardized residuals were 8.7% (95% CI 6.4-10.9%). Item reduction was performed on the 29-item instrument based on results of the factor analysis. The finalized instrument contained 21 items. DISCUSSION: This is the first adolescent-reported bowel dysfunction instrument to undergo formal psychometric assessment in the spina bifida population. The instrument demonstrated adequate reliability and the five-factor structure fit the data well. This study highlights the negative impact of bowel dysfunction on the QOL of spina bifida patients. It is limited by the moderate sample size that is a common issue in relatively rare diseases. CONCLUSION: The A-FICSI possesses desirable psychometric properties for the measurement of bowel dysfunction in the spina bifida population.


Assuntos
Constipação Intestinal/diagnóstico , Defecação/fisiologia , Incontinência Fecal/diagnóstico , Qualidade de Vida , Disrafismo Espinal/complicações , Adolescente , Criança , Constipação Intestinal/etiologia , Constipação Intestinal/fisiopatologia , Estudos Transversais , Incontinência Fecal/etiologia , Incontinência Fecal/fisiopatologia , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Estudos Retrospectivos , Disrafismo Espinal/diagnóstico , Disrafismo Espinal/fisiopatologia
2.
Res Dev Disabil ; 40: 42-50, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25841183

RESUMO

The purpose of this study was to perform a psychometric assessment of the Incontinence Symptom Index-Pediatric (ISI-P) in a cohort of adolescents with spina bifida (SB) and neuropathic urinary incontinence (UI) to test its validity and reliability. The ISI-P, an 11-item instrument with domains for symptom severity and impairment, was self-administered by subjects 11-17 years old with SB and UI. Controls were 11-17 years old, with nephrolithiasis and no history of UI. Formal psychometric assessment included an evaluation of internal consistency, test re-test reliability and factor analysis. Of 78 study-eligible subjects we attempted to contact, 33 (66.7% female) with a median age of 13.1 years completed the ISI-P (42.3% response rate). 21 control patients also completed the ISI-P. Cronbach's alpha was 0.936 and 0.792 for the severity and bother factors respectively. The delta Chi-square test for the two-factor (vs. one-factor) model was significantly [χ(2)(89) = 107.823, p < 0.05] in favor of the former model with descriptive fit indices being excellent (e.g., comparative fit index = 0.969). Furthermore, category information analysis showed that all categories were associated with different threshold values, namely that each category contributed unique information for the measurement of the latent trait. In conclusion, the ISI-P has desirable psychometric properties for the measurement of UI symptom severity and impairment in adolescents with SB.


Assuntos
Enurese Diurna/diagnóstico , Participação Social/psicologia , Disrafismo Espinal/complicações , Incontinência Urinária/diagnóstico , Adolescente , Criança , Estudos de Coortes , Estudos Transversais , Enurese Diurna/etiologia , Enurese Diurna/psicologia , Análise Fatorial , Feminino , Humanos , Masculino , Psicometria , Qualidade de Vida , Reprodutibilidade dos Testes , Índice de Gravidade de Doença , Inquéritos e Questionários , Bexiga Urinaria Neurogênica/diagnóstico , Bexiga Urinaria Neurogênica/etiologia , Bexiga Urinaria Neurogênica/psicologia , Incontinência Urinária/etiologia , Incontinência Urinária/psicologia , Incontinência Urinária por Estresse/diagnóstico , Incontinência Urinária por Estresse/etiologia , Incontinência Urinária por Estresse/psicologia , Incontinência Urinária de Urgência/diagnóstico , Incontinência Urinária de Urgência/etiologia , Incontinência Urinária de Urgência/psicologia
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