Update report on the quality of gliomas radiomics: An integration of bibliometric and radiomics quality score

Table 3 Subgroup analysis in journal types, median (interquartile range)

Radiomics quality score	Median score	Imaging journals	Clinical journals	Comprehensive journals	P value
Total 36 points	11 (9–14)	11 (8.25–14)	12 (9–16)	11.5 (8–15)	0.379
Domain 1: Protocol quality and stability in image and segmentation (0 to 5 points)	1 (1–2)	1 (1–2)	2 (1–2)	1 (1–2)	0.039
Image protocol quality (2)	1 (1–1)	1 (1–1)	1 (1–1)	1 (1–1)	0.201
Multiple segmentations (1)	0 (0–1)	0 (0–1)	0 (0–1)	0 (0–0.25)	0.03
Phantom study on all scanners (1)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)	0.205
Imaging at multiple time points (1)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)	0.383
Domain 2: Feature selection and validation (-8 to 8 points)	5 (5–6)	5 (5–6)	5 (5–6)	5 (1–2)	0.553
Feature reduction or adjustment for multiple testing (-3 or 3)	3 (3–3)	3 (3–3)	3 (3–3)	3 (3–3)	0.539
Validation (-5, 2, 3, 4, or 5)	2 (2–3)	2 (2–3)	2 (2–3)	2 (1.5–2.25)	0.585
Domain 3: Biologic/clinical validation and utility (0 to 6points)	1 (1–2)	1 (0.25–2)	1 (1–2)	1 (0–2)	0.613
Multivariable analysis with non-radiomics features (1)	1 (0–1)	1 (0–1)	1 (0–1)	1 (0–1)	0.059
Detect and discuss biological correlates (1)	0 (0–1)	0 (0–0)	0 (0–1)	0 (0–1)	0.075
Comparison to ‘gold standard’ (2)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)	0.669
Potential clinical utility (2)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)	0.628
Domain 4: Model performance index (0 to 5 points)	3 (2–4)	3 (2–4)	3 (2–4)	3 (2–5)	0.315
Cut-off analyses (1)	1 (0–1)	0 (0–1)	1 (0–1)	1 (0–1)	0.101
Discrimination statistics (2)	2 (1–2)	2 (1.5–2)	2 (1–2)	2 (1.75–2)	0.071
Calibration statistics (2)	1 (0–2)	1 (0–2)	1 (0–2)	0.5 (0–2)	0.175
Domain 5: High level of evidence (0 to 8 points)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)	0.588
Prospective study registered in a trial database (7)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)	0.435
Cost-effectiveness analysis (1)	0 (0–0)	0 (0–0)	0 (0–0)	0 (0–0)	0.236
Domain 6: Open science and data (0 to 4 points)	0.653 (0–1)	1 (0–1)	1 (0–1)	0.5 (0–2)	0.649