Obstructive Sleep Apnea Knowledge and Attitudes (OSAKA) The OSAKA questionnaires provide measures of a physician’s knowledge about and attitudes towards obstructive sleep apnea. There are two versions of the OSAKA Questionnaire. The OSAKA for adults is a 22-item measure and the OSAKA-KIDS for children is a 23-item measure. Contact Greg MarkiewiczBusiness Development Director Phone: 314-747-1794 Email: markiewicz@nospam.wustl.edu LinkedIn