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Results: 4

1.
Figure 2

Figure 2. Effect of ITNs versus No Nets in Africa on Mean Birth Weight (in Grams). From: Insecticide-Treated Nets for the Prevention of Malaria in Pregnancy: A Systematic Review of Randomised Controlled Trials.

The red squares represent the effect estimates of ITNs; the black lines represent the 95% confidence intervals associated with the effect estimates. The black diamonds represent the summary effect estimates for the different subgroups (“subtotal”) and for the overall effect (“total”). “Dry” and “wet” refer to the dry and wet seasons. SP+, women randomized to IPTp-SP; SP-, women randomized to receive placebo ITPp (factorial design).

Carol Gamble, et al. PLoS Med. 2007 March;4(3):e107.
2.
Figure 1

Figure 1. Effect of ITNs versus No Nets in Africa on Mean Haemoglobin Levels (in Grams/Litre). From: Insecticide-Treated Nets for the Prevention of Malaria in Pregnancy: A Systematic Review of Randomised Controlled Trials.

The red squares represent the effect estimates of ITNs; the black lines represent the 95% confidence intervals associated with the effect estimates (a line with an arrow indicates that the confidence interval was greater than could be illustrated in the graph). The black diamonds represent the summary effect estimates for the different subgroups (“subtotal”) and for the overall effect (“total”). “Dry” and “wet” refer to the dry and wet seasons. SP+, women randomized to IPTp-SP; SP-, women randomized to receive placebo ITPp (factorial design).

Carol Gamble, et al. PLoS Med. 2007 March;4(3):e107.
3.
Figure 4

Figure 4. Effect of ITNs versus No Nets in Africa on Miscarriage or Stillbirth. From: Insecticide-Treated Nets for the Prevention of Malaria in Pregnancy: A Systematic Review of Randomised Controlled Trials.

The red squares represent the effect estimates of ITNs; the black lines represent the 95% confidence intervals associated with the effect estimates (a line with an arrow indicates that the confidence interval was greater than could be illustrated in the graph). The black diamonds represent the summary effect estimates for the different subgroups (“subtotal”) and for the overall effect (“total”).
Data from Shulman et al. [26] refer to stillbirths only. As the event is rare (<10%), the OR reported by Shulman et al. approximates an RR and has been combined with the RRs of Njagi [24] and ter Kuile et al. [27]. SP+, women randomized to IPTp-SP; SP-, women randomized to receive placebo ITPp (factorial design).

Carol Gamble, et al. PLoS Med. 2007 March;4(3):e107.
4.
Figure 3

Figure 3. Effect ITNs versus No Nets in Africa on Placental Malaria. From: Insecticide-Treated Nets for the Prevention of Malaria in Pregnancy: A Systematic Review of Randomised Controlled Trials.

The red squares represent the effect estimates of ITNs; the black lines represent the 95% confidence intervals associated with the effect estimates (a line with an arrow indicates that the confidence interval was greater than could be illustrated in the graph). The black diamonds represent the summary effect estimates for the different subgroups (“subtotal”) and for the overall effect (“total”).
Placental malaria was defined as the presence of asexual parasitaemia detectable by microscopy. Data from Shulman et al. [26] are based on 25.8% of all enrolled women, and includes only women who delivered in the hospital. The degree of heterogeneity approached moderate levels (I2 = 49.9%) in the low gravidity group. Similar analysis using random instead of fixed-effect models gave a summary effect of 0.82 (0.61–1.11), 0.72 (0.48–1.08), and 0.79 (0.63–0.98) for low, high, and all gravidae, respectively. SP+, women randomized to IPTp-SP; SP-, women randomized to receive placebo ITPp (factorial design).

Carol Gamble, et al. PLoS Med. 2007 March;4(3):e107.

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