Figures & data
Figure 2. Percentage of reported primary brain tumor proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year.
![Figure 2. Percentage of reported primary brain tumor proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year.](/cms/asset/7d482276-692c-4fae-909e-d0e0a0c47e4c/ionc_a_1512755_f0002_b.jpg)
Table 1. Patient characteristics by modality.
Table 2. Univariate logistics regression analysis of factors predictive of proton therapy utilization.
Table 3. Multivariate logistics regression analysis of factors predictive of proton therapy utilization.
Figure 3. Percentage of reported primary brain tumor proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year by region. Northeast (CT, MA, ME, NH, RI, VT, NJ, NY and PA); South (DC, DE, FL, GA, MD, NC, SC, VA, WV, AL, KY, MS, TN, AR, LA, OK and TX); Midwest (IL, IN, MI, OH, WI, IA, KS, MN, MO, ND, NE and SD); West (AZ, CO, ID, MT, NM, NV, UT, WY, AK, CA, HI, OR and WA).
![Figure 3. Percentage of reported primary brain tumor proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year by region. Northeast (CT, MA, ME, NH, RI, VT, NJ, NY and PA); South (DC, DE, FL, GA, MD, NC, SC, VA, WV, AL, KY, MS, TN, AR, LA, OK and TX); Midwest (IL, IN, MI, OH, WI, IA, KS, MN, MO, ND, NE and SD); West (AZ, CO, ID, MT, NM, NV, UT, WY, AK, CA, HI, OR and WA).](/cms/asset/b32e4194-dc0f-4196-9332-dc2696d64295/ionc_a_1512755_f0003_b.jpg)
Figure 4. Percentage of reported glioblastoma proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year.
![Figure 4. Percentage of reported glioblastoma proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year.](/cms/asset/33ecb30d-664f-4bb9-be72-d19c2271db41/ionc_a_1512755_f0004_b.jpg)
Figure 5. Percentage of reported glioblastoma proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year by region. Northeast (CT, MA, ME, NH, RI, VT, NJ, NY and PA); South (DC, DE, FL, GA, MD, NC, SC, VA, WV, AL, KY, MS, TN, AR, LA, OK and TX); Midwest (IL, IN, MI, OH, WI, IA, KS, MN, MO, ND, NE and SD); West (AZ, CO, ID, MT, NM, NV, UT, WY, AK, CA, HI, OR and WA).
![Figure 5. Percentage of reported glioblastoma proton cases out of all external beam radiation therapy (EBRT) cases of each diagnosis year by region. Northeast (CT, MA, ME, NH, RI, VT, NJ, NY and PA); South (DC, DE, FL, GA, MD, NC, SC, VA, WV, AL, KY, MS, TN, AR, LA, OK and TX); Midwest (IL, IN, MI, OH, WI, IA, KS, MN, MO, ND, NE and SD); West (AZ, CO, ID, MT, NM, NV, UT, WY, AK, CA, HI, OR and WA).](/cms/asset/b4047153-5291-4925-a532-d3c2f133dd25/ionc_a_1512755_f0005_b.jpg)