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Table 3 Variation in geometric mean malaria parasitaemia density with age, gender, ethnicity and location across the major clinical subgroups

From: Severe and uncomplicated falciparum malaria in children from three regions and three ethnic groups in Cameroon: prospective study

Parameters

N

All subjects

N

CM

n

SMA

n

UM

P value

Age group

         

 < 60

642

10,451

40

8,940

177

10,089

120

6,791

0.415

 ≥ 60

159

5,998

8

6,978

27

2,037

68

8,954♣

0.046

 P value

 

0.013

 

0.831

 

0.001

 

0.504

 

Gender

         

 Male

472

7,773

22

7,968

110

7,636

126

4,405

0.223

 Female

421

10,293

26

9,130

121

7,862

102

11,592

0.582

 P value

 

0.087

 

0.876

 

0.835

 

0.007

 

Ethnicity

         

 Bantu

360

9,134

21

6,246

90

7,962

96

7,638

0.927

 Semi-Bantu

391

11,171

23

10,993

103

9,670

79

10,194

0.973

 Foulbe

30

9,387

2

4,205

5

1,336

5

13,402

0.522

 P value

 

0.539

 

0.789

 

0.156

 

0.738

 

Location

         

 Centre

162

17,640‡

5

9,908

60

10,336

20

43,031§

0.014

 Littoral

281

7,292

32

6,296

58

5,243

18

7,385

0.873

 South West

452

7,836

11

19,756

113

8,136

190

5,540

0.161

 P value

 

0.001

 

0.547

 

0.258

 

0.005

 

Transmission

         

 Seasonal

162

17,640

5

9,908

60

10,336

20

43,031§

0.014

 Perennial

733

7,623

43

8,435

171

7,010

208

5,686

0.555

 P value

 

<0.001

 

0.910

 

0.296

 

0.001

 
  1. Each participant has been categorised into one group only which clinicians felt was the primary phenotype; ♣Significantly higher than the corresponding values for SMA (P = 0.035).
  2. §Significantly higher than the corresponding values for SMA (P = 0.006) and patients from the South West region (P = 0.004).
  3. ‡Significantly higher than the corresponding values for the Littoral (P = 0.001) and South West regions (P = 0.002).
  4. Each participant has been categorised into one group only which clinicians felt was the primary phenotype; Samples numbers in some of the clinical groups are lower because some parameter estimates were not taken.