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Based on qualitative and mixed-method approaches, Miller and Loeb have proposed a coding system that combines questions on pain persistence and bothersomeness to create discrete categories of increasing pain severity for use in large population-based surveys. In the current analyses, using data from the 2012 National Health Interview Survey, we quantitatively assess the pain category definitions proposed by Miller and Loeb and compare this original definition to ten alternative definitions.

Categorizing the severity of pain using questions from the 2012 National Health Interview Survey