The question I have is how to test if two proportions from the same sample of patients are significantly different from each other, indicated by a p-value?
Example: 100 people, 1 has Disease A and 2 have Disease B. Is the occurrence of Disease A more frequent than Disease B, ie. occurrence of Disease A given by 1/100 compared to 2/100 for B?
Keyword is 'same' sample of patients. Any help would be much appreciated. 🙂
Best Answer
What you're asking about is a test of dependent (or paired) proportions. Please see this article on McNemar's test or this calculator site (its language isn't the clearest, but it will help you calculate the result you're looking for).