Table 4.

Combined outcomes of ANOVA for BDP and RDP of the six combinations of tandem-ring sizes for the three applicator angles

Source	Degree of freedom	Mean square bladder rectum	F-stat bladder rectum	p-value bladder rectum
Between groups IUT-ring 30°	5	501.311 1374.334	3.284 13.537	0.021** 0.000*
Within groups	24	152.670 101.521
Between groups IUT-ring 45°	5	1413.272 1065.488	5.285 7.690	0.002* 0.000*
Within groups	24	267.419 138.562
Between groups IUT-ring 60°	5	540.363 860.513	4.295 9.121	0.006* 0.000*
Within groups	24	125.815 94.348

ANOVA, analysisof variance; BPD, bladderpoint dose; RPD, rectumpoint dose; IUT, intrauterine tandem.

* and ** represent significance at 1% and 5% respectively.