Research Article

Characteristics of Chronic Pain among Head and Neck Cancer Patients Treated with Radiation Therapy: A Retrospective Study

Table 3

Site of cancer: frequency and percentage of prevalence of cancer by site and subsites and association between site of cancer and use of medications.

Site of cancerTotalUse of opioidsUse of NSAIDsUse of gabapentin
n%% yes% yes% yes

1. Oral cavityNo4788.761.7125.50.64912.80.219
Yes611.366.733.333.3

1A. LipNo5310062.326.415.1
Yes00

1B. Buccal mucosaNo5310062.326.415.1
Yes00

1C. Alveolar ridge, retromolar trigoneNo5094.362.0124.00.16716.01
Yes35.766.766.70.0

1D. Floor of mouthNo5094.360.00.28226.0112.00.056
Yes35.7100.033.366.7

1E. Hard palateNo5298.163.50.37726.9115.41
Yes11.90.00.00.0

1F. Oral tongueNo5196.260.80.52125.50.46215.71
Yes23.8100.050.00.0

2. PharynxNo3260.462.5131.30.36225.00.016
Yes2139.661.919.00.0

2A. NasopharynxNo5298.163.50.37726.9115.41
Yes11.90.00.00.0

2B. OropharynxNo356660.00.76825.7122.90.04
Yes183466.727.80.0

2C. Oropharynx: base of tongueNo448363.60.71527.3118.20.324
Yes91755.622.20.0

2D. Soft palateNo4992.563.30.62728.60.56316.31
Yes47.550.00.00.0

2E. Tonsillar fossa pillarNo4381.158.10.28625.6118.60.327
Yes1018.980.030.00.0

2F. Hypopharynx, pyriform sinusNo4686.865.20.40530.40.1717.40.577
Yes713.242.90.00.0

3. LarynxNo3667.955.60.22519.40.1095.60.01
Yes1732.176.541.235.3

3A. SupraglottisNo448356.80.12927.319.10.021
Yes91788.922.244.4

3B. GlottisNo4686.860.90.69721.70.0713.00.283
Yes713.271.457.128.6

3C. SubglottisNo5094.360.00.28226.0114.00.394
Yes35.7100.033.333.3

4. Nasal cavityNo5094.362.0128.00.55716.01
Yes35.766.70.00.0

5. Paranasal sinusesNo5310062.326.415.1
Yes00

6. OthersNo5094.364.00.54928.00.55716.01
Yes35.733.30.00.0

7. Salivary glandNo5094.366.00.04926.0116.01
Yes35.70.033.30.0

Several cell sizes are very small and have been excluded from final statistical analyses. The ones that are included in the interpretation of final results are described in bold text.