Table 4. Univariate associations for the use and efficacy of vitamins and antioxidants, celiac plexus block, and octreotide in chronic pancreatitis patients in the North American Pancreatitis Study 2.

Attribute	% in sample (N=516)	VITAMINS/ANTIOXIDANTS		CELIAC PLEXUS BLOCK		OCTREOTIDE
		% Tried	% Effective	% Tried	% Effective	% Tried	% Effective
Gender
Male	51.9	16.0	16.3	5.6	40.0	5.2	64.3
Female	48.1	11.3	10.7	7.7	36.8	5.7	42.9
Age:							*
<35	18.2	17.0	25.0	6.4	66.7	5.3	20.0
35-44	21.3	11.8	7.7	9.1	40.0	6.4	57.1
45-64	44.2	13.6	16.1	7.0	25.0	5.7	76.9
65+	16.3	13.1	0.0	2.4	50.0	3.6	0.0
Race
White	84.9	13.9	14.8	6.4	39.3	5.3	56.5
Other	15.1	12.8	10.0	7.7	33.3	6.4	40.0
Etiology
Alcohol	43.8	12.4	3.6	6.6	40.0	3.5	75.0
Obstructive	8.7	15.6	28.6	2.2	100.0	8.9	50.0
Idiopathic	28.9	16.8	24.0	9.4	35.7	7.4	54.5
Other	18.6	11.5	9.1	4.2	25.0	5.2	40.0
Pain
Yes	76.7	13.4	11.3	7.6	40.0	6.3	56.0
No	23.3	15.0	22.2	3.3	25.0	2.5	33.3
Pain
No pain	23.3	15.0	22.2	3.3	25.0	2.5	50.0
Constant	43.2	13.9	12.9	12.6	35.7	6.7	60.0
Intermittent	33.5	12.7	9.1	1.2	100.0	5.8	33.3
Pain				*
No pain	23.3	15.0	22.2	3.3	25.0	2.5	33.3
Mild-moderate	17.1	11.4	10.0	4.6	75.0	6.8	33.3
Severe	59.7	14.0	11.6	8.4	34.6	6.2	63.2
Exocrine Insufficiency (n=480)						*
Yes	29.0	15.8	18.2	8.6	25.0	1.4	54.2
No	71.0	12.0	7.3	5.6	47.4	7.0	100.0
Endocrine Insufficiency (n=480)
Yes	26.2	13.1	11.8	7.7	30.0	3.9	60.0
No	73.8	13.1	10.4	6.0	45.5	6.0	54.6

^*p < 0.05

“% in sample” - proportion of overall study sample (i.e. patients in whom any medical, endoscopic or surgical treatment modality was utilized, n = 516); “% tried” – proportion of individual subgroup in whom treatment was tried; “% effective” – among patients who received treatment, proportion in whom it was considered to be effective.