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VALIDATION OF THE OVERACTIVE BLADDER SYMPTOM SCORE (OABSS) IN SPANISH.
Aaron C. Weinberg, BA1, Gary H. Brandeis, MD1, Jeffery P. Weiss, MD2, John Bruyere, BS1, Mathew Rutman, MD3, Blaivas G. Jerry, MD4.
1Boston Medical Center, Boston, MA, USA, 2Down State Medical Center, Brooklyn, NY, USA, 3Columbia Medical Center, New York, NY, USA, 4Cornell Medical Center, New York, NY, USA.

Title: VALIDATION OF THE OVERACTIVE BLADDER SYMPTOM SCORE IN SPANISH (OABSS-S).

Purpose: The Overactive Bladder Symptom Score questionnaire, permits a graded response for urgency. In view of the limited access to health care services available to many Hispanic patients, we validated the OABSS in Spanish (OABSS-S).
Methods: Spanish speaking patients >18 yrs of age were recruited from clinics with IRB approval. The OABSS-S, was completed twice within 10 days. The subjects were divided into two subgroups by the presence of OAB (OAB-pos and OAB-neg). Internal consistency was determined with Cronbach's alpha. Test-retest was determined by Spearman's rho. Discriminant validity was assessed between each group using 1-way ANOVA and the Tukey post hoc test.
Results: 117 completed the study; mean age was 55 ± 17.7, 74 (63%) were women and 47 (40%) had OAB. There was a significant correlation between OAB-pos subjects and their OABSS-S. Cronbach's raw alpha was .92. The observed Spearman's rho indicated strong association between responses to all 7 items at visits 1 and 2. Spearman's coefficients ranged from r= 0.65 to r=.84. Comparison of average total scores obtained for all at visits 1 and 2 was not significant (10.47 ± 6.53 vs. 11.02 ± =.66). Discriminant validity testing revealed that there were significant differences in the responses between all diagnostic groups at visits 1 and 2: OAB-pos vs.OAB-neg; Total vs. OAB-neg; Total vs. OAB-neg.
Conclusions: The OABSS-S provides clinicians with a graded response for urgency. Even with the small elderly sample, its validation allows assessment of OAB in a Spanish speaking population; without that aid of interpreter services.

Table 1: Baseline Characteristics of Study Participants

Age_yr55 (17.67)
Women--%74 (63)
OAB-pos%
Age
Women
47 (40)
72
29

All values are significant at p <.001.
Table 2: Seven Question inter-item correlation matrix at Visit 1
Correlation (Question Number)
1234567
Question Number
11.000
20.238 ¥1.000
30.067 Ø0.304 ¥1.000
40.215 ¥0.308 ¥0.423 *1.000
50.257 ¥0.342 ¥0.454 *0.464 *1.000
60.153 Ø0.311 ¥0.464 *0.475 *0.562 *1.000
70.303 ¥0.395 *0.481 *0.546 *0.491 *0.606 *1.000

¥ Significant at the .05 level. * Significant at the <.0001 level. Ø Not Significant at the .05 level.
Table 3: Spearman’s rank order correlation coefficients of agreement between scores at visit 1 and 2.
OABSS Question NumberSpearman''s Coefficient
10.69
20.82
30.71
40.79
50.84
60.81
70.65
Total Score:0.84
OAB-pos0.81
OAB-neg0.83

All values are significant at p<.001.
Table 4: Subgroup total scores at visits 1 and 2
Diagnostic GroupMean ± SD Visit 1Mean ± SD Visit 2
Total10.47 ± 6.5311.02 ± 6.66
OAB-neg6.97 ± 3.607.73 ± 4.05
OAB-pos15.72 ± 5.3017.60 ± 5.99

Comparisons between diagnostic groups were significant:
OAB-pos vs. OAB-neg P<.001 at visits 1 and 2.
Total vs. OAB-neg P<.001 at visits 1 and 2
Total vs. OAB-pos P<.001 at visits 1 and 2.
Comparisons within each diagnostic group were not significant.
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