Table 2.

Univariate and multivariate predictive models of PRISMA-A items reported in abstracts of SRs on psoriasis interventions

		Univariable			Multivariable
Variables		analysis			analysis
	n	Estimate (SE)	p-value	Estimate (SE)	OR (95%CI)
Abstract word count
≤ 300	98	1
> 300	40	1.068(0.539)	0.049	0.741(0.332)	1.456(0.658-3.240)
Abstract format
8-headings	16	1
IMRAD	77	− 1.205(0.418)	0.004	− 0.049(0.418)	0.951(0.420-2.153)
Free format	45	− 1.539(0.445)	< 0.001	− 0.152(0.415)	0.858(0.378-1.939)
Cochrane affiliation
Yes	9	1.068(0.539)	0.049	0.543(0.734)	1.722(0.401-7.296)
No	129	1
Number of authors
≤ 6	102	1
> 6	36	0.600(0.303)	0.049	0.725(0.341)	1.098(1.012-1.194)
Conflict of interest
≤ 20%	59	1
> 20%	61	− 0.400(0.260)	0.126
Funding source
Academic	39	1.156(0.283)	< 0.001	1.247(0.428)	3.630(1.788-7.542)
Pharmaceutical	40	− 0.198(0.297)	0.506
No funding/UNK	59	0.302(0.478)	0.528
PRISMA endorser journal
Yes	10	1.562(0.448)	0.002	2.016(0.698)	4.370(1.785-10.98)
No	117	1
PRISMA-A statement
Review published before	71	− 0.421(0.371)	0.119
Review published after	68	1
Journal impact factor
≤ 3	74	1
> 3	43	0.331(0.373)	0.014	0.331(0.373)	1.392(0.669-2.912)