Impact on malaria morbidity of a programme supplying insecticide treated nets in children aged under 2 years in Tanzania: community cross sectional study -- Abdulla et al. 322 (7281): 270 Data Supplement

Extra references

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w2. Snow RW, Lindsay SW, Hayes RJ, Greenwood BM. Permethrin-treated bed nets (mosquito nets) prevent malaria in Gambian children. Trans R Soc Trop Med Hyg 1988;82:838-42.

w3. Snow RW, Rowan KM, Greenwood BM. A trial of permethrin-treated bed nets in the prevention of malaria in Gambian children. Trans R Soc Trop Med Hyg 1987;81:563-7.

w4. Alonso PL, Lindsay SW, Armstrong JR, Conteh M, Hill AG, David PH, et al. The effect of insecticide-treated bed nets on mortality of Gambian children. Lancet 1991;337:1499-502.

w5. Marbiah NT, Petersen E, David K, Magbity E, Lines J, Bradley DJ. A controlled trial of lambda-cyhalothrin-impregnated bed nets and/or dapsone/pyrimethamine for malaria control in Sierra Leone. Am J Trop Med Hyg 1998;58:1-6.

w6. Binka FN, Kubaje A, Adjuik M, Williams LA, Lengeler C, Maude GH, et al. Impact of permethrin impregnated bednets on child mortality in Kassena-Nankana district, Ghana: a randomized controlled trial. Trop Med Int Health 1996;1:147-54.

w7. Sexton JD, Ruebush TK2, Brandling-Bennett AD, Breman JG, Roberts JM, Odera JS, et al. Permethrin-impregnated curtains and bed-nets prevent malaria in western Kenya. Am J Trop Med Hyg 1990;43:11-8.

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Table posted on website as submitted by author

Impact of treated net materials on anaemia in controlled trials in Sub-Saharan Africa

Country: Year of Publication	Entomological inoculation rate†	Age (months)	Impact on anaemia
Country: Year of Publication	Entomological inoculation rate†	Age (months)	Mean difference¶	Protective efficacy
Control: with untreated nets
Gambia: 1995^w1	1 to 10	12 to 48	0.1
Gambia: 1988^w2	1 to 10	12 to 108	0.9
Gambia: 1987^w3	1 to 10	12 to 108	0.2
Gambia: 1991*^w4	10	6 to 72	0.5
Control: Without nets
Sierra Leone: 1998^w5	35	3 to 72	1.8
Ghana: 1996^w6	100 to 1000	6 to 59	0.4
Kenya: 1990^w7	300
Burkina Faso 1997^w8	300 to 500	6 to 59	0.5
Tanzania: 1995*^w9 (<33 pcv)	300 to 700	6 to 40	0.7	49.1
Tanzania: 1996*‡^w10 (<32 pcv)	>300	0 to 108		69.7
Tanzania: 1999^w11	>300	5 to 24	0.4
Tanzania: This study (<24 pcv)	300§	2 to 26	1.5	73.2

†Estimate applicable to the period before insecticide treated nets were introduced or the control group in the trial.

¶Mean haemoglobin difference in g/dl.

*Non-randomized controlled trials.

‡mpact estimate of the peak transmission season.

§Description of malaria situation provided in reference 7.