Table 2

Estimates^* of adjusted proportional change in median surgical waiting time (and 95% confidence intervals) for patients undergoing cancer surgery in Ontario, 1993–2000

Explanatory variable^*	Breast cancer	Colorectal cancer	Lung cancer	Prostate cancer
Age of 70 yr or more	1.14 (1.12–1.16)^†	1.06 (1.04–1.08)^†	1.13 (1.10–1.17)^†	1.01 (0.97–1.06)
Male	NA	1.03 (1.00–1.05)^‡	1.00 (0.96–1.03)	NA
Comorbidity ≥1	1.04 (1.01–1.07)^‡	1.05 (1.02–1.08)^§	1.07 (1.04–1.11)^†	1.08 (1.03–1.12)^§
Low + low-median income	1.04 (1.02–1.06)^†	1.05 (1.02–1.08)^§	1.04 (1.00–1.09)	1.03 (0.99–1.07)
Medium + medium-high income	1.02 (1.00–1.04)	1.03 (1.01–1.06)^‡	1.03 (0.98–1.07)	1.03 (1.00–1.07)
Rural setting	0.99 (0.97–1.02)	1.00 (0.96–1.03)	0.99 (0.95–1.03)	0.87 (0.83–0.90)^†
Teaching hospital	1.16 (1.01–1.32)^‡	0.91 (0.81–1.02)	0.98 (0.81–1.18)	0.85 (0.73–0.99)^‡
Low-volume hospital	0.94 (0.84–1.06)	1.02 (0.90–1.15)	1.26 (0.94–1.69)	1.15 (0.93–1.43)
Medium-volume hospital	1.00 (0.88–1.14)	1.03 (0.91–1.18)	1.26 (0.92–1.72)	1.13 (0.90–1.42)
1995–1996	1.00 (0.98–1.03)	1.05 (1.02–1.09)^§	1.09 (1.04–1.14)^†	1.18 (1.13–1.24)^†
1997–1998	1.11 (1.09–1.14)^†	1.16 (1.12–1.20)^†	1.23 (1.18–1.29)^†	1.16 (1.11–1.21)^†
1999–2000	1.25 (1.22–1.27)^†	1.34 (1.30–1.39)^†	1.36 (1.30–1.43)^†	1.05 (1.01–1.10)^‡

↵* Estimates >1.00 indicate a proportional increase in median surgical waiting time compared to the baseline group; estimates <1.00, a proportional decrease. Baseline group: age <70 yr, female, comorbidity = 0, high income, urban, non-teaching, high-volume hospital, years 1993–1994.
↵† p < 0.001
↵‡ p < 0.05
↵§ p < 0.01