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. 2021 Dec 1;158(1):1–9. doi: 10.1001/jamadermatol.2021.4918

Table 2. Association of Psoriasis With Venous Thromboembolism According to Subgroups.

Subgroups	Venous thromboembolism				Subgroup differences
Subgroups	No. of studies	Pooled HR (95% CI)	P value	I² (%)	P value	I² (%)
Arthritis status
Psoriasis alone	2	0.97 (0.78-1.21)	.79	89	.11	61.2
Psoriatic arthritis	3	1.24 (1.01-1.53)^a	.04	82	.11	61.2
Psoriasis severity
Mild psoriasis	1	1.07 (1.03-1.12)^a	.002	NA	.45	0
Severe psoriasis	1	1.13 (0.99-1.30)	.08	NA	.45	0
Sex
Men	2	1.40 (0.90-2.19)	.13	93	.29	9.2
Women	3	1.89 (1.36-2.61)^a	<.001	84	.29	9.2
Geographic location
US	2	1.07 (0.67-1.70)	.78	86	.04	68.3
Asia	1	2.02 (1.42-2.88)^a	<.001	NA
Europe	4	1.28 (1.06-1.53)^a	.01	95

Abbreviations: HR, hazard ratio; NA, not applicable.

^{^a}

P < .05.