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Table 2 Incidence density rates of malaria per 100 child-years of follow-up in the 1117 HIV-infected children included in the pWADA cohort, Abidjan, May-August 2012

From: Effect of cotrimoxazole prophylaxis on the incidence of malaria in HIV-infected children in 2012, in Abidjan, Côte d’Ivoire: a prospective cohort study

Characteristics N Number of child-years of follow-up Incidence density rate with 95 % Confidence Interval for all cases of malaria: probable, confirmed including recurrences Incidence density rate with 95 % Confidence Interval for confirmed malaria including recurrences
n (%) Incidence density rate (per 100 child-years) (95 % Confidence Interval) n’ (%) Incidence density rate (per 100 child-years) (95 % Confidence Interval)
Incidence density rate of malaria
Cases without recurrences 1117 278 48 (94.1) 17.2 (12.4-22.1) - - -
Recurrence cases 1117 278 3 (5.9) 1.1 (0.0-2.3) - - -
Confirmed 1117 278 28 (55.0) 10.1 (6.3-13.8) - - -
Probable 1117 278 23 (45.0) 8.3 (4.9-11.6) - - -
Overall (confirmed and probable)    51 (100.0) 18.3 (13.3-23.4) - - -
1117 278
Incidence density rate of malaria according to treatment
On ART – On Cotrimoxazole 667 166 7 (13.7) 4.2 (1.1-7.3) 4 (14.3) 2.4 (0.0-4.8)
Off ART – On Cotrimoxazole 83 21 3 (5.9) 14.5 (0.0-30.9) 2 (7.1) 9.7 (0.0-23.1)
On ART – Off Cotrimoxazole 323 80 36 (70.6) 44.7 (30.1-59.3) 19 (67.9) 23.6 (13.0-34.2)
Off ART – Off Cotrimoxazole 35 9 5 (9.8) 57.3 (7.1-107.6) 3 (10.7) 34.4 (0.0-73.3)
Immunodeficiency according to age a
Severe 69 17 5 (9.8) 29.4 (3.61-55.2) 3 (10.7) 17.5 (0.0-37.2)
Moderate 106 26 6 (11.8) 23.1 (4.6-41.5) 4 (14.3) 15.1 (0.3-30.0)
No/Missing 942 235 40 (78.4) 17.0 (11.7-22.3) 21 (75.0) 8.9 (5.1-12.8)
Age
<5 years 144 36 11 (21.6) 30.7 (12.5-48.8) 6 (21.4) 16.7 (3.3-30.1)
[5-10[years 443 110 20 (39.2) 18.1 (10.2-26.1) 12 (42.9) 10.9 (4.7-17.0)
≥10 years 530 132 20 (39.2) 15.1 (8.5-21.8) 10 (35.7) 7.6 (2.9-12.3)
Centres
University hospital of Cocody 182 45 1 (2.0) 2.2 (0.0-6.5) 1 (3.6) 2.2 (0.0-6.5)
University hospital of Yopougon 344 86 9 (17.6) 10.5 (3.6-17.4) 4 (14.3) 4.7 (0.1-9.2)
CePReF 322 80 23 (45.1) 28.7 (17.0-40.4) 11 (39.3) 13.7 (5.6-21.8)
CIRBA 212 53 7 (13.7) 13.3 (3.4-23.1) 2 (7.1) 3.8 (0.0-9.0)
MTCT-Plus 57 14 11 (21.6) 77.5 (31.7-123.2) 10 (35.7) 70.4 (26.8-114.1)
  1. aUsing te 2010 WHO definition. ART: antiretroviral therapy; n’() number and percentage of only confirmed malaria cases