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Table 3 Plasmodium falciparum prevalence (%) and risk estimates at delivery in four ZPP transition categories by gravida

From: Zinc erythrocyte protoporphyrin as marker of malaria risk in pregnancy - a retrospective cross-sectional and longitudinal study

Iron Transition

Peripheral parasitaemia

Placental parasitaemia

All Gravida

PG

MG

All Gravida

PG

MG

RR(95%CI)

RR(95%CI)

RR(95%CI)

RR(95%CI)

RR(95%CI)

RR(95%CI)

ZPP

      

Category

17.4 (242)

39.0 (41)

12.9 (201)

18.3 (230)

40.0 (40)

13.7 (190)

1

Refs

Refs

Refs

Refs

Refs

Refs

Category

11.5 (148)

13.2 (38)

10.9 (110)

11.9 (143)

21.6 (37)

8.5 (106)

2

0.7

0.3

0.8

0.6

0.5

0.6

 

(0.4-1.1)

(0.1-0.8)

(0.4-1.6)

(0.4-1.1)

(0.3-1.1)

(0.3-1.3)

Category

23.9 (628)

37.0 (154)

19.6 (474)

20.4 (612)

34.5 (148)

15.9 (464)

3

1.4

0.9

1.5

1.1

0.9

1.2

 

(1.0-1.9)

(0.6-1.5)

(1.0-2.3)

(0.8-1.5)

(0.6-1.3)

(0.8-1.8)

Category

23.0 (309)

44.1 (59)

18.0 (250)

16.0 (300)

33.9 (59)

11.6 (241)

4

1.3

1.1

1.4

0.9

0.8

0.8

 

(0.9-1.9)

(0.7-1.8)

(0.9-2.2)

(0.6-1.3)

(0.5-1.4)

(0.5-1.4)

  1. Brackets: available sample, or 95 % confidence interval.
  2. ZPP: zinc erythrocyte protoporphyrin;
  3. Category 1: ZPP normal to ZPP normal.
  4. Category 2: Raised ZPP to normal ZPP.
  5. Category 3: Raised ZPP to raised ZPP.
  6. Category 4: Normal ZPP to raised ZPP.