The impact of public performance reporting on cancer elective surgery waiting times: a data linkage study

Table 4 Adjusted difference-in-difference model regression results for effect of public performance reporting on cancer elective surgery waiting times stratified by urgency category

	Urgency (30 days)			Urgency (90 days)
	β	SE	p-value	β	SE	p-value
Bowel cancer^a	0.60	0.13	< 0.001	−19.66	3.43	< 0.001
Post PPR^b	1.65	0.51	< 0.001	5.38	0.45	< 0.001
Post PPR*bowel cancer^c	−0.23	0.18	0.20	0.27	4.40	0.95
N observations	106,046			73,876
Breast cancer^a	−0.76	0.11	< 0.001	−27.48	2.82	< 0.001
Post PPR^b	1.67	0.05	< 0.001	5.41	0.45	< 0.001
Post PPR*breast cancer^c	−0.51	0.13	< 0.001	5.23	3.97	0.19
N observations	113,716			74,028
Lung cancer^a	0.06	0.31	0.84	−8.12	5.83	0.16
Post PPR^b	1.65	0.05	< 0.001	5.42	0.45	< 0.001
Post PPR*lung cancer^c	2.50	0.31	< 0.001	−0.21	6.29	0.97
N observations	100,366			73,489
Bowel, breast and lung cancer^a	−0.24	0.09	< 0.01	−22.77	2.04	< 0.001
Post PPR^b	1.69	0.05	< 0.001	5.36	0.44	< 0.001
Post PPR*bowel, breast and lung cancer^c	−0.23	0.12	0.03	2.97	2.67	0.27
N observations	124,730			75,155

All models adjusted for sex, age group, marital status, preferred language, patient region, patient type, surgical specialty, length of stay, AIHW hospital peer group
SE standard error, PPR public performance reporting
^a Difference between the two groups pre-intervention, with the control group (other cancer) as the reference group
^b Difference between pre and post-intervention in the control group (other cancer), with pre-intervention as the reference group
^c Difference in changes over time between the two groups

ISSN: 1472-6963