Are the KESS (Knowles-Eccersley-Scott-Symptom Scoring-System) and CSS (constipation scoring system) questionnaires useful for the evaluation of obstructed defecation?: P021


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Abstract

Aim:To evaluate useful of KESS and CSS questionnaires for obstructed defecation (OD).Methods:Patients (n = 74) were questionnaired by KESS and CSS and divided into two groups: control group (total 34 patients) - 12 males (average age 53 ± 15 years) and 22 females (54 ± 17 years) and the group of patients with OD (total 40 patients) - 10 males (53 ± 15 years) and 30 females (53 ± 18 years). Cronbach and Pearson coefficients were used to estimate the questionnaires value.Results:KESS questionnaire has a higher Cronbach alpha than CSS (0.907 vs 0.895). Total KESS and CSS scores were significantly different between patients and healthy controls (Pearson coefficient r = 0.79 vs r = 0.75, P < 0.001). Lowest coefficients values came from questions of bloating (r = 0.32; P = 0.05), type of assistance(ˆ = 0.42; P < 0.001), enemas/digitation (r = 0.47, P < 0.001) and abdominal pain (r = 0.48; P < 0.001). Highest - from questions of unsuccessful evacuatory attempts(r = 0.66; P < 0.001), painful evacuation effort (r = 0.66; P < 0,001), duration of constipation (r = 0.58; P < 0.001). KESS and CSS questionnaire's sensitivity were 86% vs 75%, specificity - 97%, positivepredictive value - 98% vs 97%, negativepredictive value - 19% vs 29%.Conclusion:The KESS and CSS significantly differentiate patients with OD from healthy controls. Separate questions from both questionnaires have different diagnostic values.

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