Factors associated with the deaths of men poisoned by carbamato (“chumbinho”)

Retrospective study, epidemiological case-control based on poisoning reporting forms, a poison control center located in the metropolitan region of Rio de Janeiro. We used 24 notification forms of poisoning in men aged 20 to 59 years with poisoning by carbamate history from 2005 to 2009. The records were randomly selected, respecting the ratio 1:3 (a case to three controls). The age range was 23-58 years, average 43.83 years.

Results

The most frequent symptoms were myosis (OR=1.0; 95% CI: 0.27 to 3.69 p=1.0.), drooling (OR=0.83; 95% CI. 0.22 to 3.12 p=0.78), and dyspnea (OR=0.66; 95% CI: 0:14-3.03 p=0.59).

Conclusion

The deaths were associated with drooling, miosis and dyspnea and a strong association with pulmonary rales, bronchospasm and pulmonary snoring.

Men’s health; Poisoning; Case-control studies

Case

Variables	Age	Exposure time	P-value – age/exposure	Duration of hospitalization	P-value – age/hospitalization
Age	28	120 minutes	0.02	48 hours	0.03
	56	120 minutes		96 hours
	23	90 minutes		72 hours
	58	360 minutes		216 hours
	48	20 minutes		48 hours
	50	360 minutes		96 hours

Mean	43.83	178.33		96

Median	49	120		84
Control
Age	48	90 minutes	0.002	72 hours	0.04
	33	60 minutes		240 hours
	26	60 minutes		48 hours
	31	90 minutes		48 hours
	27	180 minutes		72 hours
	32	60 minutes		96 hours
	41	60 minutes		168 hours
	33	60 minutes		48 hours
	42	360 minutes		120 hours
	22	120 minutes		96 hours
	34	120 minutes		96 hours
	58	120 minutes		216 hours
	50	240 minutes		48 hours
	48	20 minutes		48 hours
	42	30 minutes		240 hours
	56	30 minutes		24 hours
	50	360 minutes		384 hours
	46	30 minutes		120 hours

Mean	39.94	116.11		121.44

Median	41.5	75		96

Variables	Case		Control		Non-adjusted OR	CI 95%	P-value

	n=6	%	n=18	%
Drooling	6	100%	15	83.3%	0.83	0.22 – 3.12	0.78
Myosis	6	100%	18	100%	1.0	0.27 – 3.69	1.0
Dyspnea	4	66.6%	8	44.4%	0.66	0.14 – 3.03	0.59
Bronchorrhea	3	50%	9	50%	1.0	0.20 – 4.9	1.0
Muscle twitching	3	50%	14	77.7%	1.55	0.32 – 7.34	0.57
Lung rales	3	50%	1	5.55%	0.11	0.096 – 1.28	0.07
Lung rhonchi	3	50%	5	27.7%	0.5	0.1 – 3.05	0.48
Sweating	3	50%	6	33.3%	0.66	0.12 – 3.5	0.63
Bronchospasm	2	33.3%	3	16.6%	0.5	0.066 – 3.74	0.49
Vomiting	2	33.3%	9	50%	1.5	0.25 – 8.9	0.65

Universidade Federal do Rio Grande do Sul. Escola de Enfermagem Rua São Manoel, 963 -Campus da Saúde , 90.620-110 - Porto Alegre - RS - Brasil, Fone: (55 51) 3308-5242 / Fax: (55 51) 3308-5436 - Porto Alegre - RS - Brazil
E-mail: revista@enf.ufrgs.br

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[1] Corresponding author: Júlio César Santos da Silva. E-mail: jcesarsantos@gmail.com