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Table 1 Social and clinical characteristics of the study population

From: G6PD deficiency alleles in a malaria-endemic region in the Western Brazilian Amazon

Characteristicsa

G6PD normal (N = 493)

G6PD deficient (N = 23)

Total (N = 516)

Age—years

36.4 ± 14.8

37.9 ± 12.3

36.5 ± 14.7

Ethnic group

 European descendant

70 (14.2)

3 (13.0)

73 (14.1)

 Afro- descendant

50 (10.1)

3 (13.0)

53 (10.3)

 Mestizob

368 (74.7)

17 (74.0)

385 (74.6)

 Others

5 (1.0)

0

5 (1.0)

Haemoglobin—g/dl

15.2 ± 1.3

15.0 ± 1.2

15.2 ± 1.3

ABO-Rh

 A+/A−

65 (13.2)

4 (17.4)

69 (13.4)

 B+/B−

17 (3.5)

1 (4.4)

18 (3.5)

 AB+/AB−

8 (1.6)

0

8 (1.6)

 O+/O−

117 (23.7)

5 (21.7)

122 (23.6)

History of malariac

 Malaria episode

415 (84.2)

21 (91.3)

436 (84.5)

 Primaquine treatment

352 (71.4)

17 (73.9)

369 (71.5)

 Use of bed nets

358 (72.6)

19 (82.6)

377 (73.1)

 Use of insecticide-treated bed nets

244 (68.2)

17 (89.5)

261 (69.2)

 Indoor residual spraying

291 (59.0)

15 (65.2)

306 (59.3)

 Individual protection

152 (30.8)

8 (34.8)

160 (31.0)

  1. aValues are presented as mean ± standard deviation or absolute number (percentage); b combined Brazilian native, European and African ancestry. c Malaria episodes were reported as the infections presented during all life; For primaquine treatment the use was considered only for P. vivax infections; For the use of bed nets it was considered the habit of use and use the night before the interview; Individual protection includes the use of long-sleeved clothing, insect repellent to the body, aerosol and electric insecticides and use of screen on windows