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Table 1 Summary Statistics of Nasopharyngeal Carcinoma Survivors Surveyed for Current Quality of Life (n = 44)

From: Long-term disease-specific and cognitive quality of life after intensity-modulated radiation therapy: a cross-sectional survey of nasopharyngeal carcinoma survivors

   Time since End of Radiotherapy Treatment  
Characteristic Total (n = 44) Cohort 1
≤2.5 years
(n = 11)
Cohort 2
>2.5–6 years (n = 13)
Cohort 3
>6–10 years
(n = 9)
Cohort 4
>10 years
(n = 11)
p-value
Mean time since end of RT (months) 74.6 15.6 49.0 93.6 144.3  
Range of time since end of RT (months) 5–162 5–28 31–68 69–116 128–162  
Age at time of treatment: mean ± SD (years) 49.2 ± 13.9 53.2 ± 9.5 52.8 ± 13.8 41.3 ± 14.6 48.6 ± 15.6  
Age at time of survey: mean ± SD (years) 55.5 ± 13.8 54.5 ± 9.7 57.3 ± 13.9 47.7 ± 14.7 60.6 ± 15.4 0.20
Gender       0.88
 Men 35 9 10 8 8  
 Women 9 2 3 1 3  
Ethnicity       0.13
 Asian Pacific Islander (API) 34 11 8 7 8  
 Non-API 10 0 5 2 3  
Language       0.005
 English 31 3 10 8 10  
 Non-English 13 8 3 1 1  
AJCC Stage (6th Ed.)       0.78
 I or II 13 3 5 3 2  
 III or IV 31 8 8 6 9  
Radiation Type       0.15
 Forward-planned IMRT 2 0 0 0 2  
 Inverse-planned IMRT 42 11 13 9 9  
Chemotherapy       0.04
 None 6 1 4 0 1  
 Concurrent Only 8 1 2 0 5  
 Concurrent + Adjuvant 30 9 7 9 5  
  1. A one-way analysis of variance was used to compare the age distributions among the cohorts and Fisher’s exact test was used for categorical variables. The probability values for statistically significant results (p < 0.05) are in bold