Potential Added Value of 18F-FDG PET Metabolic Parameters in Predicting Disease Relapse in Type 1 Autoimmune Pancreatitis

Table 3 Univariable (P < 0.1) and multivariable analyses of the association with relapse-free survival in patients with type 1 AIP

	Univariable analysis		Multivariable analysis
	Odds ratio (95% CI)	P value	Adjusted Odds ratio (95% CI)	P value
Clinical variables
IgG₄, mg/dL	1.001(1.000–1.002)	0.008	1.007 (1.000–1.002)	0.014
PET semiquantitative parameter
SUV_max, g/ml	1.568(0.991–2.483)	0.047
SUVR	2.683(1.009–7.137)	0.026
SUV_mean42%, g/ml	1.990(0.931–4.257)	0.069
MTV_2.5, cm³	1.018(1.001–1.035)	0.064
TLG_2.5, g/ml×cm³	1.006(1.001–1.010)	0.020	1.001 (1.002–1.013)	0.012
PET qualitative variables
Distribution of FDG activity
Diffuse/Multifocal	4.190(1.239–14.174)	0.018
Segmental/Focal	Reference category

* SUV_max: Max standard uptake value; SUV_mean: Mean standard uptake value; MTV Metabolic tumor volume, TLG Total lesion glycolysis, SUVR standard uptake value ratio

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