Table 4. Univariable and multivariable analysis of the study-level data to identify factors related to high and low CLAIM adherence.

Variable	Category1	Univariable analysis				Multivariable analysis
		CLAIM score		CLAIM compliance		CLAIM score		CLAIM compliance
		Estimate	P	Estimate	P	Estimate	P	Estimate	P
Publication year	-	0.069	0.028	0.092	0.010	0.110	0.007	0.095	0.028
Radiology subfield	Dental	−2.590	0.026	−16.748	0.986	−2.672	0.025	−16.669	0.986
	Cardiovascular	14.585	0.977	16.384	0.985	15.722	0.984	16.998	0.982
	Genitourinary	0.272	0.760	1.070	0.221	0.542	0.639	0.643	0.474
	Neuro	−0.598	0.149	−0.418	0.265	−0.336	0.483	−0.025	0.953
	Chest	−1.613	0.001	0.274	0.548	−1.963	<0.001	−0.079	0.876
	Pediatric	−1.466	0.014	−1.345	0.030	−1.241	0.059	−1.106	0.091
	Musculoskeletal	−0.267	0.565	−0.155	0.713	−0.361	0.487	−0.075	0.869
Publication type	Print	0.387	0.700	1.014	0.382	-	-	-	-
	Preprint	−0.916	0.430	1.686	0.188	-	-	-	-
Scope of journals	Radiology or imaging-related	0.314	0.123	0.278	0.163	-	-	-	-
Focus of journals	AI-focused	0.256	0.652	−0.534	0.346	-	-	-	-
h5 index of journal	-	0.005	0.013	0.004	0.027	0.003	0.246	0.001	0.771
Impact factor quartile of journal	Q1	1.387	<0.001	0.750	0.040	1.754	0.018	2.577	0.017
	Q2	1.154	0.004	0.289	0.456	1.414	0.053	2.152	0.046
	Q3	0.386	0.454	−0.302	0.565	0.836	0.296	1.547	0.173
	Q4	0.128	0.836	−1.044	0.148	0.277	0.764	1.165	0.350

P values achieving statistical significance are in bold. CLAIM, Checklist for Artificial Intelligence in Medical Imaging; AI, artificial intelligence.

¹Reference categories not shown.