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Table 1 Model Parameter Values

From: Cost-effectiveness analysis of rapid diagnostic test, microscopy and syndromic approach in the diagnosis of malaria in Nigeria: implications for scaling-up deployment of ACT

No.

Disease Parameter

Estimate

Source

P1

Malaria prevalence

43.1%

Uzochukwu 2008 [42]

P2

Febrile outpatients aged ≥ 5 years

  

P3

Proportion of NMFI cases that were bacterial

10%

Shillcutt et al. 2008

P4

Probability that a NMFI received an antibiotic

100%

Uzochukwu 2008

P5

RDT sensitivity

90%

Uzochukwu 2008, Beadle et. al, 1994, Craig et al., 2002, Bell et. al. 2005

P6

Presumptive treatment sensitivity

100%

Uzochukwu. 2008

P7

Microscopy sensitivity

82%

Uzochukwu. 2008, Shillcutt et. al. 2008, Reyburn et al., 2004

P8

RDT specificity

91%

Uzochukwu. 2008, Mueller et al., 2007 Bell et al. 2005, WHO, 2000

P9

Presumptive treatment specificity

0%

Uzochukwu. 2008

P10

Microscopy specificity

87%

Uzochukwu. 2008

P11

Probability of adherence -- ACT

80%

Uzochukwu. 2008, Depoortere et al., 2004, Fogg et al., 2004

P12

Probability of adherence amoxicillin

80%

Assumption

P13

ACT efficacy (for malaria)

95%

Uzochukwu. 2008. Shillcutt et. al., 2008, Lefevre et. al., 2001

No

Disease Parameter

Estimate

Source

P14

Amoxicillin efficacy (for malaria)

0%

Assumption

P15

ACT efficacy (for bacterial infection)

0%

Assumption

P16

Amoxicillin efficacy (for bacterial infection)

75%

Shillcutt et. al. 2008

P17

ACT efficacy (for viral infection)

0%

Assumption

P18

Amoxicillin efficacy (for viral infection)

0%

Assumption

 

Treatment seeking behaviour

  

P19

Outpatient visit at a health centre

1-P20

Shillcutt et.al., 2008

P20

Outpatient visit took place in a hospital

32%

Shillcutt et.al., 2008

P21

Patient with severe illness went to hospital for inpatient care after treatment failure

48%

Shillcutt et. al., 2008, McCombie, 1996

P22

Patient with uncomplicated illness returned to clinic for outpatient care after treatment failure

48%

Shillcutt et.al., 2008

P23

Malaria not effectively treated led to severe disease (age ≥ 5)

1%

Shillcutt et. al. 2008

P24

Malaria not effectively treated led to severe disease (age <5)

7.50%

Shillcutt et. al. 2008

P25

Bacterial illness not effectively treated led to severe disease (age ≥ 5)

15%

Shillcutt et. al. 2008

P26

Bacterial illness not effectively treated led to severe disease (age<5)

30%

Shillcutt et. al. 2008

P27

Viral illness not effectively treated led to severe disease (age ≥ 5)

0%

Assumption

P28

Viral illness not effectively treated led to severe disease (age<5)

0%

Assumption

P29

Severe malaria led to neurological sequelae (age ≥ 5)

1.50%

Shillcutt et. al. 2008

P30

Severe malaria led to neurological sequelae (age<5)

3.50%

Shillcutt et. al. 2008

P31

Severe bacterial infection led to neurological sequelae (age ≥ 5)

3.80%

Shillcutt et. al. 2008

P32

Severe bacterial infection led to neurological sequelae (age<5)

2%

Shillcutt et. al. 2008

P33

Inpatient with severe malaria attending an inpatient facility died (all ages)

10%

Shillcutt et. al. 2008

P34

Inpatient with severe bacterial illness attending an inpatient facility died (all ages)

15%

Shillcutt et. al. 2008

P35

Patient with severe malaria that did not return for formal care would die (all ages)

25%

Shillcutt et. al. 2008

P36

Patient with severe bacterial illness that did not return for formal care would die (all ages)

P35

Assumption