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Table 2 Association of serum IgG levels to recombinant domains of Pf EMP1 with clinical malaria in Chonyi, Kenya for the period October 2000 until March 2001

From: Acquisition of naturally occurring antibody responses to recombinant protein domains of Plasmodium falciparum erythrocyte membrane protein 1

Chonyi

 

Slide all

n = 596

Antigen

Odds Ratio

p-value

95% C. I.

DBL1α

0.75

0.580

0.26 – 2.11

DBL2β

0.63

0.472

0.18 – 2.21

CIDR1α

0.71

0.365

0.33 – 1.50

DBL4γ

0.89

0.791

0.37 – 2.13

DBL5β

0.72

0.517

0.26 – 1.95

Chonyi

 

Slide positive

n = 197

Antigen

Odds Ratio

p-value

95% C. I.

DBL1α

0.75

0.580

0.26 – 2.11

DBL2β

0.63

0.472

0.18 – 2.21

CIDR1α

0.71

0.365

0.33 – 1.50

DBL4γ

0.89

0.791

0.37 – 2.13

DBL5β

0.72

0.517

0.26 – 1.95

Chonyi

 

Slide negative

n = 399

Antigen

Odds Ratio

p-value

95% C. I.

DBL1α

0.05

0.020

0.04 – 0.63

DBL2β

0.26

0.208

0.32 – 2.10

CIDR1α

0.72

0.553

0.25 – 2.10

DBL4γ

0.49

0.290

0.14 – 1.81

DBL5β

0.49

0.343

0.11 – 2.11

  1. 1Results from a multiple logistic regression giving the odds ratio for becoming a case of clinical malaria in the subsequent six months if scored as antibody positive against each domain in turn controlling for for age (categorized as a factor of six months duration) and exposure (estimated by responses to whole schizont extract). An individual was deemed antibody positive if the OD obtained was greater than the mean OD plus 3 standard deviations obtained from a panel of non-exposed donors.