Pre-analytical variables evaluation in laboratory tests of patients attended at the Vitória da Conquista Central laboratory, Bahia, Brazil

Ramos, Ludimila R.; Oliveira, Márcio V.; Souza, Cláudio L.

doi:10.5935/1676-2444.20200009

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Jornal Brasileiro de Patologia e Medicina Laboratorial

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ORIGINAL ARTICLES • J. Bras. Patol. Med. Lab. 56 • 2020 • https://doi.org/10.5935/1676-2444.20200009 copy

Pre-analytical variables evaluation in laboratory tests of patients attended at the Vitória da Conquista Central laboratory, Bahia, Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

Laboratory tests	Reference values
Erythrocytes (women)	4-5.2 (10¹² l)
Erythrocytes (men)	4.5-5.9 (10¹² l)
Hemoglobin (women)	12-16 g/dl
Hemoglobin (men)	13.5-17.5 g/dl
Leukocytes	4,000-10,000 mm³
Glucose	60-99 mg/dl
Urea	17-43 mg/dl
Creatinine	6-1.3 mg/dl
GGT	9-64 U/l
Total cholesterol	Desirable: < 200 mg/dl
Triglycerides	Desirable: < 150 mg/dl

Variable	n ^* * n can vary between categories due to sample losses.	%
Age
< 60 years	342	80.5
≥ 60 years	83	19.5
Sex
Female	325	76.5
Male	100	23.5
Schooling level
Never studied/Incomplete elementary school	136	32
Complete elementary school/Incomplete middle school	96	22.6
Complete middle school/Incomplete high school	59	13.9
Complete high school/Higher education	133	31.5
Ethnicity
Non-white	333	78.4
White	92	21.6
Chronic disease
Yes	213	50.2
No	212	49.8
Pregnant
Yes	58	17.8
No	267	82.2

Variable	n ^* * n can vary between categories due to sample losses;	%
Alcohol consumption
Yes	65	15.3
No	360	84.7
Alcohol consumption on the previous day
Yes	8	12.3
No	57	87.7
Smoker
Yes	38	8.9
No	387	91.1
Tobacco use on collection day or on the previous day
Yes	32	84.2
No	6	15.2
Physical activity
Yes	52	12.2
No	373	87.8
Walking to the laboratory
Yes	69	16.2
No	356	83.7
adequate fasting time^ fasting time up to 14 hours.
Yes	351	83.6
No	74	17.4
Menopause
Yes	116	35.7
No	209	64.3
Use of medications
Yes	291	68.5
No	134	31.5

Variable	Abnormal test (n)^* * n can vary between categories due to sample losses;	Normal test (n)^* * n can vary between categories due to sample losses;	OR (CI 95%)	p value^ statistical significance - p < 0.05 in the chi-square test.
Pregnancy
Yes	21	26	0.2 (0.1-0.4)	0.000001
No	37	242	1
Tobacco use
Yes	36	2	3.7 (0.8-15.7)	0.02
No	321	66	1
Means of going to the laboratory
Walking	21	48	2 (1.1-3.6)	0.01
Public transport or car	63	293	1
Menopause
Yes	31	39	1.9 (1.1-3.5)	0.01
No	41	100	1
Antihypertensive medication use
Yes	8	112	7.2 (1.9-27.6)	0.002
No	3	302	1

Sociedade Brasileira de Patologia Clínica, Rua Dois de Dezembro,78/909 - Catete, CEP: 22220-040v - Rio de Janeiro - RJ, Tel.: +55 21 - 3077-1400 / 3077-1408, Fax.: +55 21 - 2205-3386 - Rio de Janeiro - RJ - Brazil
E-mail: jbpml@sbpc.org.br

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[1] CORRESPONDING AUTHOR Cláudio Lima Souza ORCID 0000-0002-8094-8357 e-mail: caulimas@gmail.com