A subregional prediction model for radiation-induced hypothyroidism

BMC Medical Imaging

Table 1 Characteristics of patients in the training and test sets

Characteristics	Training set	Test set	P value
Age			0.102
Range	9–81	10–76
Mean ± STD	43.01 ± 12.84	46.58 ± 10.49
Sex			0.389
Male	59	36
Female	17	16
T-stage			0.581
T1	16	11
T2	9	6
T3	33	28
T4	18	7
N-stage			0.098
N1	0	0
N2	69	41
N3	7	11
Radiation technique			0.389
IMRT	59	36
TOMO	17	16
Therapeutic pattern			0.957
RT Only	16	12
CCRT	60	40
Outcome			0.866
RHT	35	24
NRHT	41	28

IMRT Intensity-Modulated Radiation Therapy, TOMO Tomotherapy, RT Radiotherapy, CCRT Concurrent Chemotherapy and Radiotherapy, RHT Radiation-induced hypothyroidism, NRHT Non- Radiation-induced hypothyroidism

ISSN: 1471-2342