Table 2

Patient and treatment details divided by the year in which treatment was undertaken

YearNumber of patientsTumour volume (mm3) (mean (SD))Previous surgeryMarginal dose (Gy)Number of isocentresFollow up (months)
MedianMean(SD)MedianMean(SD)MedianMean(SD)
Tumour volumes were significantly larger in 1996 than in subsequent years (p<0.05), but in other respects treatment variables altered little during this period.
Patient details by year.
1996475370 (5230)23%1514.6(1.5)65.7(2.1)5953(17)
1997372650 (3200)35%1514.6(1.5)65.6(2.3)4747(8)
1998593350 (4300)32%1514.8(1.1)55.3(2.2)3635(9)
1999913530 (3930)16%1514.4(1.3)65.7(2.6)2423(7)