Table 1 Characteristics of included studies by year of application/revision of the insurance service
Characteristics | Number of articles (%) |
|---|---|
Diseases | |
Lung cancer | 30 (21.7) |
Lymphoma | 5 (3.6) |
Head and neck cancer | 12 (8.7) |
Colorectal cancer | 8 (5.8) |
Breast cancer | 10 (7.2) |
Esophageal cancer | 4 (2.9) |
Stomach cancer | 4 (2.9) |
Thyroid cancer | 1 (0.7) |
Pancreatic cancer | 6 (4.3) |
Cervical cancer | 4 (2.9) |
Ovarian cancer | 4 (2.9) |
Uterine cancer | 6 (4.3) |
Prostate cancer | 2 (1.4) |
Gastrointestinal stromal tumor | 1 (0.7) |
Brain cancer | 1 (0.7) |
Alzheimer’s disease | 1 (0.7) |
Others | 39 (28.2) |
Modality | |
PET | 94 (68.1) |
PET/CT | 48 (34.8) |
PET tracer | |
18 F-FDG | 133 (96.4) |
Others | 5 (3.6) |
Publication year | |
2002 | 14 (10.1) |
2003 to 2006 | 38 (27.5) |
2007 to 2010 | 86 (62.3) |
Sample size | |
Less than 24 | 30 (21.7) |
25 to 49 | 50 (36.2) |
50 to 99 | 31 (22.5) |
More than 100 | 27 (19.5) |
Study type | |
Comparative study | 68 (49.3) |
Non-comparative study | 70 (50.7) |
Study design | |
Prospective study | 35 (25.4) |
Retrospective study | 103 (74.6) |
Funding source | |
Description included | 17 (12.3) |
No description | 121 (87.7) |
Index type | |
Indexed in MEDLINE | 69 (50.0) |
Not indexed in MEDLINE | 69 (50.0) |