TY - JOUR
T1 - STOP-BANG questionnaire performance in a veterans affairs unattended sleep study program
AU - Kunisaki, Ken M.
AU - Brown, Kirstin E.
AU - Fabbrini, Angela E.
AU - Wetherbee, Erin E.
AU - Rector, Thomas S.
PY - 2014/2
Y1 - 2014/2
N2 - Rationale: There are no published data regarding use of the STOP-BANG sleep apnea questionnaire in populations referred to Veterans Affairs (VA) sleep facilities. If a particular STOP-BANG score cutpoint had high positive predictive value in this referral population, it could reduce the need for diagnostic sleep studies. Methods: STOP-BANG questionnaires were prospectively administered to veterans undergoing unattended sleep studies at a single VA facility.We evaluated the sensitivity, specificity, positive predictive value, and area under the receiver-operating characteristic curve (ROC AUC) of STOP-BANG scores for identifying a Respiratory Disturbance Index (RDI) greater than 15/hour. We also recalibrated the STOP-BANG score to our referral population, using logistic regression models. Measurements and Main Results: Of 1,196 consecutive veterans undergoing unattended sleep studies, the mean STOP-BANG score was 5.7 ± 1.4, and 67% had an RDI greater than 15/hour. Sensitivities were excellent at lower STOP-BANG scores, but sharply decreased at scores of 6 and above. Specificity improved in a linear fashion with increasing scores. The ROC AUC was 0.66 (95% confi dence interval [CI], 0.64-0.69) and recalibrated models improved the ROC AUC to 0.74 (95% CI, 0.69-0.78). The highest STOP-BANG score of 8 was present in only 7.9% of the sample and had a positive predictive value of 85% (95% CI, 76-92%). Conclusions: The STOP-BANG questionnaire alone is insufficient to confirm the presence of significant sleep apnea.Amaximal score of 8 did not have a high enough positive predictive value to forego confirmatory sleep testing.
AB - Rationale: There are no published data regarding use of the STOP-BANG sleep apnea questionnaire in populations referred to Veterans Affairs (VA) sleep facilities. If a particular STOP-BANG score cutpoint had high positive predictive value in this referral population, it could reduce the need for diagnostic sleep studies. Methods: STOP-BANG questionnaires were prospectively administered to veterans undergoing unattended sleep studies at a single VA facility.We evaluated the sensitivity, specificity, positive predictive value, and area under the receiver-operating characteristic curve (ROC AUC) of STOP-BANG scores for identifying a Respiratory Disturbance Index (RDI) greater than 15/hour. We also recalibrated the STOP-BANG score to our referral population, using logistic regression models. Measurements and Main Results: Of 1,196 consecutive veterans undergoing unattended sleep studies, the mean STOP-BANG score was 5.7 ± 1.4, and 67% had an RDI greater than 15/hour. Sensitivities were excellent at lower STOP-BANG scores, but sharply decreased at scores of 6 and above. Specificity improved in a linear fashion with increasing scores. The ROC AUC was 0.66 (95% confi dence interval [CI], 0.64-0.69) and recalibrated models improved the ROC AUC to 0.74 (95% CI, 0.69-0.78). The highest STOP-BANG score of 8 was present in only 7.9% of the sample and had a positive predictive value of 85% (95% CI, 76-92%). Conclusions: The STOP-BANG questionnaire alone is insufficient to confirm the presence of significant sleep apnea.Amaximal score of 8 did not have a high enough positive predictive value to forego confirmatory sleep testing.
KW - Predictive value of tests
KW - Questionnaires
KW - Sensitivity and specificity
KW - Sleep apnea syndromes
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U2 - 10.1513/AnnalsATS.201305-134OC
DO - 10.1513/AnnalsATS.201305-134OC
M3 - Article
C2 - 24354320
AN - SCOPUS:84898720638
SN - 2325-6621
VL - 11
SP - 192
EP - 197
JO - Annals of the American Thoracic Society
JF - Annals of the American Thoracic Society
IS - 2
ER -