Abstract:
AIMS:Minimum important difference (MID) estimates the minimum degree of change in an instrument's score that correlates with subjective sense of improvement. The aim of this study was to estimate the MID for the Urogenital Distress Inventory (UDI), Incontinence Impact Questionnaire (IIQ) and Overactive Bladder Questionnaire (OAB-q) using anchor and distribution-based approaches in patients with urge-predominant incontinence and whether MID changes over time. METHODS:This was a sub-analysis of a multi-center trial of 307 women with pure urge (11) or urge-predominant (296) incontinence who completed condition-specific instruments 10 weeks and 8 months after randomization to anticholinergic medication with or without behavioral therapy. We applied anchor-based methods only when the Kendall's rank correlations between the anchors (Global Perception of Improvement (GPI), Patient Satisfaction Questionnaire (PSQ), and incontinence episodes) and the incontinence instruments (UDI, UDI irritative subscale, IIQ, and OAB-q subscales) were ≥ 0.3. We applied three distribution-based methods to all instruments: effect sizes of ± 0.2 SD (small) and ± 0.5 SD (medium), and standard error of measurement of ± 1. Analyses were performed at both time points. RESULTS:Anchor-based MIDs for the UDI ranged from -35 to -45 and -15 to -25 for the irritative subscale distribution-based methods MIDs for UDI and IIQ ranged between -10 to -25 and -19 to -49, respectively, reflective of a reduction in bother and symptom severity (SS). OAB-q subscale MIDs ranged from +5 to +12, denoting improved quality of life (HRQL) and -13 to -25, consistent with a reduction in SS. CONCLUSIONS:The MID in women with urge-predominant UI for the UDI and UDI irritative are -35 and -15. Our findings are consistent with previously reported MIDs for the OAB-q subscales. Distribution-based method MIDs are lower values than anchor-based values. The MID did not typically change over the time.
journal_name
Neurourol Urodynjournal_title
Neurourology and urodynamicsauthors
Dyer KY,Xu Y,Brubaker L,Nygaard I,Markland A,Rahn D,Chai TC,Stoddard A,Lukacz E,Urinary Incontinence Treatment Network (UITN).doi
10.1002/nau.21028subject
Has Abstractpub_date
2011-09-01 00:00:00pages
1319-24issue
7eissn
0733-2467issn
1520-6777journal_volume
30pub_type
杂志文章,多中心研究,随机对照试验abstract:AIMS:To evaluate whether the treatment based on urodynamics (UDS) leads to better treatment response compared to where the treatment is based on symptoms alone. STUDY DESIGN, MATERIALS AND METHODS:All patients referred with lower urinary tract symptoms (LUTS) were offered the opportunity to participate in this patient...
journal_title:Neurourology and urodynamics
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abstract:AIMS:Nociceptive behavior and its relationship with bladder dysfunction were investigated in two cystitis models, which were induced by intraperitoneal (i.p.) injection of cyclophosphamide (CYP) or intravesical instillation of acetone, using freely moving, non-catheterized conscious rats. METHODS:Female Sprague-Dawley...
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abstract::The aim of the study was to determine the contribution of intra-abdominal pressure transmission to urinary continence in the female. Five patients with genuine stress incontinence (GSI) were studied. Pressure transmission was measured in equivalent positions inside and outside the urethra and bladder during the Intrav...
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abstract:AIMS:The experiences and information needs of clinicians who use pelvic floor muscle training to manage urinary incontinence were explored. METHODS:Qualitative methods were used to conduct thematic analysis of data collected from clinician focus groups and interviews. Participants were registered physiotherapists and ...
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journal_title:Neurourology and urodynamics
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journal_title:Neurourology and urodynamics
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