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Table 1 Distribution of the 601 DBS’s donors analysed in this study by health region, age group and sex

From: Assessing the burden of submicroscopic Plasmodium infections in a pre-elimination malaria setting in sub-Saharan Africa, Guinea-Bissau

Health region

Total N (%)

Age group (years) n (%)

Sex n (%)

Statistical analysis

0–4

5–14

15–24

25–44

≥ 45

Male

Female

Bafataa

89 (15.0)

28 (32.0)

24 (27.0)

14 (16.0)

13 (15.0)

10 (11.0)

37 (43.0)

49 (57.0)

X2 = 49.1, df = 40, P = 0.15b

X2 = 9.5, df = 10, P = 0.49c

Bijagos

20 (3.0)

11 (55.0)

1 (5.0)

2 (10.0)

3 (15.0)

3 (15.0)

7 (35.0)

13 (65.0)

Biomboa

37 (6.0)

9 (24.0)

7 (19.0)

9 (24.0)

5 (14.0)

7 (19.0)

10 (28.0)

26 (72.0)

Bolama

22 (4.0)

9 (41.0)

7 (32.0)

1 (4.5)

4 (18.0)

1 (4.5)

10 (46.0)

12 (54.0)

Cacheu

37 (6.0)

10 (27.0)

6 (16.0)

6 (16.0)

7 (19.0)

8 (22.0)

14 (38.0)

23 (62.0)

Farim

15 (2.0)

4 (26.7)

5 (33.3)

3 (20.0)

3 (20.0)

0 (0.0)

7 (47.0)

8 (53.0)

Gabu

142 (24.0)

55 (39.0)

26 (18.0)

31 (22.0)

19 (13.0)

11 (8.0)

57 (40.0)

85 (60.0)

Oio

48 (8.0)

13 (27.0)

8 (16.0)

9 (19.0)

9 (19.0)

9 (19.0)

15 (31.0)

33 (69.0)

Quinara

82 (14.0)

39 (48.0)

15 (18.0)

11 (13.0)

12 (15.0)

5 (6.0)

40 (49.0)

42 (51.0)

SAB

82 (14.0)

26 (32.0)

20 (24.0)

20 (24.0)

9 (11.0)

7 (9.0)

27 (33.0)

55 (67.0)

Tombali

27 (4.0)

9 (33.0)

2 (7.0)

5 (19.0)

7 (26.0)

4 (15.0)

12 (44.4)

15 (55.6)

Total (N)

601 (100.0)

213 (35.0)

121 (20.0)

111 (19.0)

91 (15.0)

65 (11.0)

236 (40.0)

361 (60.0)

  1. aMissing sex information for three individuals in Bafata and one individual in Biombo. The total number of males and females is 597
  2. b,cChi-square test (X2) was used to test for association between the distribution of individuals by age group and sex in each health region, respectively. df = degrees of freedom