Table 2 Study design, timing, and scope of the reviewed original articles (n = 139) published in the Journal of the Egyptian National Cancer Institute, in the period from 2011 to 2016
Item | Number (%) | |
|---|---|---|
Study design | ||
Clearly stated | Â | 36 (25.9) |
 Type | Case-control | 11 (30.6) |
Cohort | 10 (27.7) | |
Cross sectional | 5 (13.9) | |
Clinical trial | 5 (13.9) | |
Pilot | 3 (8.3) | |
Documentary | 1 (2.8) | |
Case series | 1 (2.7) | |
Study timing | ||
Reported | Â | 82 (59.0) |
Retrospective | 54 (65.8) | |
 Timing | Prospective | 19 (23.2) |
Non-directional | 5 (6.1) | |
Combined | 4 (4.9) | |
Study scope | Prognostic | 44 (31.7) |
Therapeutic | 34 (24.5) | |
Diagnostic | 30 (21.6) | |
Basic science | 17 (12.2) | |
Epidemiologic | 9 (6.5) | |
Preventive | 4 (2.9) | |
Others | 1 (0.7) | |