Haemoglobin and red cell counts in leptospirosis patients infected with different serovars

Craig, Scott Benjamin; Smythe, Lee Douglas; Graham, Glenn Charles; Burns, Mary-Anne; McMahon, Jamie Lee; Dohnt, Michael Francis; Tulsiani, Suhella Mohan; McKay, David Brian

doi:10.1590/0037-8682-1013-2013

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Short Communications • Rev. Soc. Bras. Med. Trop. 46 (2) • Mar-Apr 2013 • https://doi.org/10.1590/0037-8682-1013-2013 copy

Haemoglobin and red cell counts in leptospirosis patients infected with different serovars

Authorship SCIMAGO INSTITUTIONS RANKINGS

Introduction

The aim of the study was to compare haemoglobin and red cell counts between patients known to be infected with a range of leptospiral serovars.

Methods

The study retrospectively compared the haemoglobin and red cell count results from the first blood samples taken from 207 patients at presentation to a Queensland Health hospital.

Results

Significant differences were observed in haemoglobin and red cell counts in those infected with Leptospira interrogans serovars Szwajizak and Canicola when compared with most of the other serovars.

Conclusions

These findings suggest that haemoglobin and red cell counts may be useful in differentiating leptospiral serovars in leptospirosis patients.

Leptospirosis; Haemoglobin; Red cell count

Serovar	Hb^a a g/L;			RCC^b b ×1012;
Serovar	N	Mean	SE	N	Mean	SE
Leptospira borgpetersenii serovar Arborea	14	142.79	19.74	14	4.80	0.53
Leptospira interrogans serovar Australis	39	142.10	14.02	39	4.77	0.49
Leptospira interrogans serovar Canicola	7	131.29	12.78	7	4.41	0.41
Leptospira weilii serovar Celledoni	6	154.17	18.47	6	4.96	0.57
Leptospira borgpetersenii serovar Hardjo	14	146.29	14.20	14	4.86	0.57
Leptospira interrogans serovar Kremastos	15	143.53	15.54	15	4.81	0.36
Leptospira interrogans serovar Robinsoni	18	145.56	12.38	18	4.84	0.36
Leptospira interrogans serovar Szwajizak	8	160.38	4.53	8	5.49	0.35
Leptospira borgpetersenii serovar Tarassovi	10	145.30	11.76	10	4.88	0.37
Leptospira weilii serovar Topaz	9	141.22	9.34	9	4.68	0.23
Leptospira interrogans serovar Zanoni	67	147.34	13.13	67	4.76	0.43
F value		2.67			2.75
p value		0.004			0.003

	Arborea	Australis	Canicola	Celledoni	Hardjo	Kremastos	Robinsoni	Szwajizak	Topaz	Tarassovi	Zanoni
Arborea	-	0.9	0.12	0.24	0.6	0.91	0.65	0.006	0.8	0.7	0.42
Australis	-	-	0.07	0.17	0.33	0.75	0.31	<0.001	0.81	0.44	0.03
Canicola	-	-	-	0.03	0.03	0.07	0.03	<0.001	0.11	0.04	0.02
Celledoni	-	-	-	-	0.37	0.25	0.32	0.46	0.15	0.33	0.41
Hardjo	-	-	-	-	-	0.62	0.88	0.003	0.31	0.85	0.8
Kremastos	-	-	-	-	-	-	0.68	0.001	0.65	0.74	0.38
Robinsoni	-	-	-	-	-	-	-	0.002	0.32	0.96	0.6
Szwajizak	-	-	-	-	-	-	-	-	0.001	0.003	<0.001
Topaz	-	-	-	-	-	-	-	-	-	0.41	0.1
Tarassovi	-	-	-	-	-	-	-	-	-	-	0.15
Zanoni	-	-	-	-	-	-	-	-	-	-	-

	Arborea	Australis	Canicola	Celledoni	Hardjo	Kremastos	Robinsoni	Szwajizak	Topaz	Tarassovi	Zanoni
Arborea	-	0.83	0.08	0.58	0.76	0.94	0.8	0.002	0.46	0.65	0.81
Australis	-	-	0.06	0.46	0.58	0.71	0.51	<0.001	0.44	0.41	0.98
Canicola	-	-	-	0.08	0.05	0.04	0.03	<0.001	0.15	0.03	0.07
Celledoni	-	-	-	-	0.74	0.58	0.66	0.07	0.3	0.78	0.45
Hardjo	-	-	-	-	-	0.78	0.91	0.005	0.3	0.91	0.55
Kremastos	-	-	-	-	-	-	0.81	<0.001	0.28	0.63	0.66
Robinsoni	-	-	-	-	-	-	-	<0.001	0.17	0.78	0.44
Szwajizak	-	-	-	-	-	-	-	-	<0.001	0.002	0.003
Topaz	-	-	-	-	-	-	-	-	-	0.16	0.38
Tarassovi	-	-	-	-	-	-	-	-	-	-	0.37
Zanoni	-	-	-	-	-	-	-	-	-	-	-

Sociedade Brasileira de Medicina Tropical - SBMT Caixa Postal 118, 38001-970 Uberaba MG Brazil, Tel.: +55 34 3318-5255 / +55 34 3318-5636/ +55 34 3318-5287, http://rsbmt.org.br/ - Uberaba - MG - Brazil
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[1] Address to: Prof. Scott Benjamin Craig. Faculty of Science, Health and Education/USC. Sippy Downs Drive, Sippy Downs, Queensland, 4556, Australia. Fax: 61 7 3274-9175. e-mail: Scott_Craig@health.qld.gov.au