system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Denominator of negative predictive value is
assistant
The correct answer is  Predictive value reflects the diagnostic power of the test. It&;s accuracy depends on sensitivity, specificity and disease prevalence. Predictive value of a negative test = d/(c+d)x100 Ref: 25th edition, Park&;s Textbook of Preventive and Social Medicine, Page no. 152