Referral ratio	60.0%
Average hospital stay	6.02day

Inpatients

Medical treatment	48
Surgery	1,967
Isotope	376
Linac	15
Other	0

Number according to type of test

Test name		Number
Ultrasonography (echo)		123,866
Fine-needle aspiration cytology		7,285
Isotope	Iodine Thyroid Scintigraphy	1,458
	Technetium Thyroid Scintigraphy	44
	Iodine Whole-Body Scintigraphy	93
	Parathryoid Scintigraphy	153
	Bone Scintigraphy	1
	Tumor Scintigraphy	2
CT	Thyroid	2,985
	Ocular muscles	132
	Lungs	2,073
	Parathyroid	149
	Other	185
X-ray		3,107

Number according to type of treatment

Treatment name		Number
Isotope	Graves' disease	920
	Thyroid cancer (Ablation)	164
	Thyroid cancer (distant metastasis)	90
	Autonomously functioning thyroid nodule	96
Linac	Graves' ophthalmopathy	55
	Thyroid malignant tumor	29
PEIT		305

※Linac, linear accelerator. Counting the number of treated patients, not the number of frequency of therapy.

Outpatients

First visit	25,095
Follow-up visit	352,864
Referral	15,067

Number of medical consultations

Disease/treatment	446
Treatment choice	1,585
Daily life/psychological issues	269
Other	4,111
Total	6,411

Number of medical consultations

Area name	Number of patients	Ratio (%)
Tokyo	14,505	58.4
Kanagawa	3,671	14.8
Saitama	2,781	11.2
Chiba	2,572	10.4
Ibaraki	312	1.3
Tochigi	171	0.7
Gunma	88	0.4
Other	747	3.0
Total	24,847	100

Number of surgeries

Type of surgery	Number
Surgery for malignant thyroid tumor	971
Surgery for benign thyroid tumor	575
Surgery for Graves' disease	231
Surgery for removal of parathyroid glands	107
Other	74
Total	1,958