Table 1 Demographics and clinical presentation of P. knowlesi.

From: A comparison of the clinical, laboratory and epidemiological features of two divergent subpopulations of Plasmodium knowlesi

 

All patients

Patients with cluster 1 infection

Patients with cluster 2 infection

p value

No. patients

420

298 (72.2)

115 (27.8)

Age, (years)

42 [31–57]

44 [29–59]

41 [31–56]

0.546

Male

258 (61.4)

172 (57.7)

79 (68.7)

0.043

Iban ethnicity

362 (86.2)

265 (88.9)

91 (79.1)

0.016

Types of activities

Jungle

172 (41.0)

110 (36.9)

58 (50.4)

 

Peri-domestic

240 (57.1)

183 (61.4)

54 (47.0)

 

Peri-domestic & jungle

8 (1.9)

5 (1.7)

3 (2.6)

0.023

Previous malaria

42 (10.0)

28 (9.4)

12 (10.4)

0.715

Referral route

Directly presented to hospital

304 (72.4)

224 (75.2)

77 (67)

 

Given anti-malarial at referral health center

116 (27.6)

74 (24.8)

38 (33)

0.108

I.V artesunate treatment at referral health center

3 (0.7)

1 (0.3)

2 (1.7)

0.087

Severe disease

44 (10.5)

35 (11.7)

8 (7)

0.208

Duration of illness (Days)

3 [2–5]

3 [2–5]

4 [2–6]

0.111

Pulse Rate (beats/min)

100 [88–112]

101 (± 18)

99 (± 19)

0.404

Respiratory Rate (breaths/min)

21 [20–23]

21 [20–23]

21 [20–23]

0.270

Mean arterial pressure (mm/Hg)

93.8 (± 13.5)

93.2 (± 13.9)

95.2 (± 12.5)

0.166

Oxygen saturations (%)

98 [97–99]

98 [97–99]

98 [97–99]

0.165

  1. Data are presented as no. (%), mean (± SD) or median [IQR]. p value < 0.05 are in bold. Adjusted Fisher’s exact from pairwise Bonferroni correction remained significant (p = 0.039) between jungle and peri-domestic activities.