Skip to main content
. 2017 Jul 3;16(6):1014–1021. doi: 10.1177/1533034617717624

Table 4.

Dosimetric Changes at Weeks 3 and 6 in Bulky and Postoperative Groups.a,b

Parameter Mean Percentage Change From Baseline (Range) P Value for Difference Between B Versus PO
B PO
Week 3 Week 6 P Value Week 3 Week 6 P Value Week 3 Week 6
CTV-HR mean dose 1.9% (6 to −1) 2.4% (6 to 0) >.05 1.6% (3 to 0) 1.8% (4 to −17) > .05 > .05 > .05
CTV-LR mean dose 1.2% (3 to −1) 2.4% (5 to −1) .042 1.1% (3 to −18) 1.7% (6 to −25) > .05 >.05 > .05
RP mean dose 15.2% (71 to −8) 16.4 % (76 to −30) >.05 16.3% (89 to −13) 9.1% (70 to −25) > .05 > .05 > .05
LP mean dose 16.1% (50 to −2) 15.8% (60 to −11) >.05 6.3% (51 to −18) 10.4% (56 to −18) > .05 > .05  >.05
SC maximum dose 0.08% (21 to 0) 0.06% (25 to −1) >.05 0.03% (46 to −1) 0.04% (13 to −1) > .05 (.052) > .05

Abbreviations: B, bulky disease; CTV-HR, high-risk clinical target volumes; CTV-LR, low-risk clinical target volumes; LP, left parotid; RP, right parotid; PO, postoperative; SC, spinal cord.

a P value from 2-way analysis of variance (ANOVA) model with 1 fixed factor (group), 1 repeated-measures factor (week), and their interaction (group × week).

b P > .05: not significant. P ≤ .05: significant difference within groups, week 3 versus 6, or between groups, B versus PO, at a specific week (3 or 6).