Table 3.

Beta coefficient and score determination of P. aeruginosa infection risk factors

Factors	Beta Coefficienta	P-value	Transformed coefficients	Assigned score
Nasogastric tube feeding prior to admission	3.62	0.001	3.93	4
Bronchiectasis	1.86	0.001	2.02	2
Immunocompromised status	1.48	0.003	1.61	2
Other chronic respiratory diseases (atelectasis, pulmonary fibrosis, and lung bleb)	0.92	0.039	1	1

^aCoefficient of model intercept = −1.140522