The use of count data models in biomedical informatics evaluation research.
Studies on the impact and value of health information technology (HIT) have often focused on outcome measures that are counts of such things as hospital admissions or the number of laboratory tests per patient. These measures with their highly skewed distributions (high frequency of 0s and 1s) are more appropriately analyzed with count data models than the much more frequently used variations of ordinary least squares (OLS). Use of a [...]
Author(s): Du, Jing, Park, Young-Taek, Theera-Ampornpunt, Nawanan, McCullough, Jeffrey S, Speedie, Stuart M
DOI: 10.1136/amiajnl-2011-000256