title: Psychometric properties of a new health needs analysis tool designed for cardiac patients.
abstract: OBJECTIVE
  Assessing health needs is pivotal in healthcare systems, ensuring that services are appropriate for a population's genuine needs. In the absence of an appropriate investigational tool, a comprehensive process of questionnaire development was undertaken to evaluate and validate a specific health needs assessment tool for cardiac patients (Nottingham Health Needs Assessment; NHNA). Its psychometric properties were investigated in a survey of patients admitted with acute coronary syndromes.
  
  
  METHODS
  Two hundred and forty-two consecutive patients admitted to an acute cardiac unit with symptoms suggestive of acute myocardial infarction completed a postal questionnaire about health needs and quality-of-life, using generic (Short Form 12 and EuroQol-5D) and specific (Seattle Angina Questionnaire) health-related quality-of-life instruments.
  
  
  RESULTS
  Forty-six items were assigned to five domains of health-related needs according to principal component analysis, with high internal consistency (0.83-0.89). Each domain in the NHNA questionnaire correlated highly with its quality-of-life counterpart, indicating relatively high concurrent validity.
  
  
  CONCLUSIONS
  The NHNA questionnaire has acceptable psychometric features, with satisfactory construct validity as determined by quality-of-life analysis. This health needs assessment instrument appears to be a reliable means of identifying patients' needs, which is an important landmark for directing health services.
authors.affiliation: Ministry of Health and Medical Education, Iran. msxma@nottingham.ac.uk
authors.forename: M
authors.initials: M
authors.lastname: Asadi-Lari
authors.forename: C
authors.initials: C
authors.lastname: Packham
authors.forename: D
authors.initials: D
authors.lastname: Gray
mesh_terms: D003324:Coronary Artery Disease / Q000175:diagnosis / Q000503:physiopathology*; D006304:Health Status; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis / Q000503:physiopathology*; D020380:Needs Assessment; D011594:Psychometrics / Q000295:instrumentation*; D011788:Quality of Life; D012650:Self Disclosure; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires; D013577:Syndrome; D006113:United Kingdom