Table 2.

Associations between IgAV and ever cancer.

Variable	Coefficient	Std. error	p value	OR (95%CI)
(a) Univariate logistic regression analysis
Age	0.023	0.009	0.014	1.023 (1.005; 1.042)
Female gender	−0.010	0.334	0.968	1.014 (0.529; 1.944)
Ever smoking	0.592	0.322	0.066	1.808 (0.962; 3.401)
Articular involv.	0.105	0.336	0.756	1.110 (0.575; 2.145)
Purpura above waistline	0.103	0.318	0.745	1.109 (0.595; 2.067)
Skin necroses	−0.040	0.315	0.899	0.961 (0.518; 1.783)
GIT involv.	0.154	0.370	0.676	1.67 (0.566; 2.408)
Renal involv.	−0.712	0.357	0.046	0.491 (0.244; 0.987)
Severe GIT or renal	2.030	0.407	<0.001	7.616 (3.427; 16.923)
(b) Multivariate logistic regression analysis
Age	0.016	0.008	0.042	1.016 (1.001; 1.032)
Severe GIT or renal	1.810	0.329	<0.001	6.113 (3.208; 11.651)

GIT, gastrointestinal; OR, odds ratio; CI, confidence interval.