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Table 3 Incidence rates for fevers, non-malaria fevers and anaemia (all episodes during passive surveillance)

From: The risk of malaria in Ghanaian infants born to women managed in pregnancy with intermittent screening and treatment for malaria or intermittent preventive treatment with sulfadoxine/pyrimethamine

Analysis population, Intervention group

Fever episodes

Person-years at risk

Incidence rate per year

Rate ratioa (95 % CI)

p value*

ATP1, IPTp-SP

356

312.7

1.14

(Reference)

ATP1, ISTp-AL

336

308.5

1.09

0.99 (0.83, 1.17)

0.88

Analysis population, Intervention group

Non-malaria fever episodes

Person-years at risk

Incidence rate per year

Rate ratioa (95 % CI)

p value*

ATP1, IPTp-SP

262

312.7

0.84

(Reference)

ATP1, ISTp-AL

251

308.5

0.81

0.97 (0.83, 1.15)

0.74

Analysis population, Intervention group

Anaemia episodes

Person-years at risk

Incidence rate per year

Rate ratioa (95 % CI)

p value*

ATP1, IPTp-SP

59

312.7

0.19

(Reference)

ATP1, ISTp-AL

63

308.5

0.20

0.95 (0.83, 1.10)

0.52

  1. IPTp-SP intermittent preventive treatment with sulfadoxine/pyrimethamine, ISTp-AL screening with a rapid diagnostic test (RDT) and treatment with artemether–lumefantrine, ATP1 primary analysis according to protocol
  2. * Two-sided p values
  3. aCovariates adjusted: for gender, socio-economic status, rural/urban residence location, irrigated area residence location, season, ITN use, age at visit, mother’s parasitaemia status on day of enrolment into the initial cohort, predelivery haemoglobin