Continuous versus intermittent short-acting β2-agonists nebulization as first-line therapy in hospitalized children with severe asthma exacerbation: a propensity score matching analysis

Table 3 Derivation of propensity scores via multivariable logistic regression model

Equation parameters	Coefficient	Standard error	95% confidence interval	P-value
Age function 1^a	−2.96	1.63	−6.15, 0.23	0.069
Age function 2^a	0.01	0.01	−0.01, 0.01	0.147
Respiratory rate function 1^a	35,024.04	17,178.24	1355.31, 68,692.77	0.041
Respiratory rate function 2^a	−11,823.00	5542.34	−22,685.78, − 960.22	0.033
Pulse rate function 1^a	− 284,024.70	707,345.10	−1,670,396.00, 1,102,346.00	0.688
Pulse rate function 2^a	66,655.37	160,989.00	− 248,877.30, 382,188.10	0.679
Oxygen saturation function 1^a	− 815,886.90	2,937,831.00	−6,573,930.00, 4,942,156.00	0.781
Oxygen saturation function 2^a	197,629.00	731,112.40	−1,235,325.00, 1,630,583.00	0.787
Constant (intercept)	−6.93	43.00	− 91.20, 77.35	0.872

^aOptimal second-degree fractional polynomial terms for age, respiratory rate, pulse rate and oxygen saturation parameters

ISSN: 2054-7064