Test for normality of follow‐up HoNOS
	Obs	W	V	z	Prob > z
Shapiro–Wilk test	8,949	0.98	103.33	12.38	0.000
Shapiro–Francia test	8,949	0.98	109.33	12.32	0.000

Within/between provider variance in follow‐up HoNOS
	Mean	SD	Min	Max	Obs
Overall variance	50.01	74.1	0	365	N = 8,949
Between provider variance		29.1	0	133.0	n = 48
Within provider variance		69.5	−82.9	380.7	T‐bar = 186.44

GLM model diagnostics	based on model with independent variable: log waiting time
Log pseudolikelihood	−36006
Squared correlation btw. y and yhat	0.183
Linktest yhat	p > |t| = 0.000
Linktest yhat squared	p > |t| = 0.051
Hosmer–Lemeshow test	F(10, 8939) = 0.42; Prob > F = 0.9385
Ramsey RESET test	χ2(1) = 5.78; Prob > χ2 = 0.0162
Park test	Gaussian		χ2(1) = 26.12; Prob > χ2 = 0.0000
	Poisson		χ2(1) = 2.20; Prob > χ2 = 0.1376
	Gamma		χ2(1) = 4.59; Prob > χ2 = 0.0322
	Inverse Gaussian		χ2(1) = 33.26; Prob > χ2 = 0.0000