Modeling and prediction of pressure injury in hospitalized patients using artificial intelligence

Table 5 Model performance using the Braden scores

AI technique	Original (row, imbalanced) data			Post-processed (rebalanced) cohorts
	Model			Model

LASSO linear regularized model	Performance of testing data			Model performance of testing data
	Confusion matrix	Result false	Result true	Confusion matrix	Result false	Result true
	Prediction false	4759	172	Prediction False	4202	38
	Prediction true	14	68	Prediction True	571	202
	Accuracy	96.29%		Accuracy	87.85%
	95% CI	95.73%	96.80%	95% CI	86.92%	89.74%
	Kappa	0.4079		Kappa	0.3514
	Sensitivity	0.28333		Sensitivity	0.84167
	Specificity	0.99707		Specificity	0.88037
	Prevalence	0.01636		Prevalence	0.15420

ISSN: 1472-6947