ERRATUM

This article refers to:

Levamisole in cocaine: Unexpected news from an old acquaintance

Levamisole in cocaine: unexpected news from an old acquaintance, Alexandre Larocque and Robert S. Hoffman, volume 50, pp 231–241.

There was an error in Table 2 which was not corrected in the original published version. No negative values should appear in this table. All values in this table should appear as positive. Please see the corrected table below:

Table 2. Serologic profile of cases of complications from levamisole-adulterated cocaine.

	Total cases (n =203)		Neutropenia cases (n =140)		Cutaneous complications cases (n =84)
Serologic tests	n	(%)	n	(%)	n	(%)
ANA positive	42	20.7	10	7.1	28	33.3
ANA negative	21	10.3	10	7.1	16	19.1
ANA unknown	140	69	120	85.8	40	47.6
ANCA positive	94	46.3	38	27.1	67	79.8
ANCA negative	4	2	2	1.4	2	2.4
ANCA unknown	105	51.7	100	71.5	15	17.8
c-ANCA positive	29	14.3	12	8.6	13	15.5
c-ANCA negative	27	13.3	14	10	23	27.4
c-ANCA unknown	147	72.4	114	81.4	48	57.1
p-ANCA positive	77	37.9	25	17.9	57	67.8
p-ANCA negative	8	4	7	5	2	2.4
p-ANCA unknown	118	58.1	108	77.1	25	29.8
Anti-MPO positive	54	26.6	14	10	36	42.9
Anti-MPO negative	10	4.9	6	4.3	9	10.7
Anti-MPO unknown	139	68.5	120	85.7	39	46.4
Anti-PR3 positive	41	20.2	14	10	30	35.7
Anti-PR3 negative	11	5.4	4	2.9	11	13.1
Anti-PR3 unknown	151	74.4	122	87.1	43	51.2
LA positive	40	19.7	19	13.6	23	27.4
LA negative	9	4.4	5	3.6	6	7.1
LA unknown	154	75.9	116	82.8	55	65.5
Anticardiolipin positive	32	15.8	17	12.1	29	34.5
Anticardiolipin negative	12	5.9	3	2.1	11	13.1
Anticardiolipin unknown	159	78.3	120	85.8	44	52.4
Low complement	17	8.4	6	4.3	10	11.9
Normal complement	19	9.3	7	5	15	17.9
Complement unknown	167	82.3	127	90.7	59	70.2
Low protein C	4	2	2	1.4	4	4.8
Normal protein C	6	3	3	2.1	6	7.1
Protein C unknown	193	95	135	96.5	74	88.1
Low protein S	5	2.5	3	2.1	5	6
Normal protein S	6	3	3	2.1	6	7.1
Protein S unknown	192	94.5	134	95.8	73	86.9
Low AT	1	0.5	0	0	1	1.2
Normal AT	4	2	2	1.4	4	4.8
AT unknown	198	97.5	138	98.6	79	94

ANA: antinuclear antibody; ANCA: antineutrophil cytoplasmic antibody; c-ANCA: cytoplasmic (“classical”) antineutrophil cytoplasmic antibody; p-ANCA: perinuclear antineutrophil cytoplasmic antibody; anti-MPO: anti-myeloperoxidase antibody; anti-PR3: anti-proteinase 3 antibody; LA: lupus anticoagulant; AT: antithrombin III.