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Table 3 Elasticities of choice probability relative to each attribute*

From: Stated preferences for anti-malarial drug characteristics in Zomba, a malaria endemic area of Malawi

Attribute

Mean (SD)

Median (Interquartile range)

Cost

0.08 (0.05)

0.06 (0.03 – 0.12)

Fever duration

0.76 (0.23)

0.88 (0.78 – 0.89)

Risk of rash

0.35 (0.29)

0.25 (0.08 – 0.62)

Duration of prophylaxis

0.01 (0.01)

0.02 (0.003 – 0.02)

Treatment course duration

0.08 (0.04)

0.09 (0.05 – 0.10)

  1. *In absolute values. Based on results of estimated model 2, fixing variance to be the same across residential groups (urban, rural and peri-urban) and with a fixed coefficient for the treatment course duration and fever duration variables; the fixed part of the random (log normal) coefficient of the risk of rash variable was fixed at zero in view of estimation results (see columns 4 & 5 of Table 2).
  2. Elasticities were calculated for an official treatment option with the following specification: Cost MK50 ($0.46), Time to Fever resolution 12 hours, Risk of Rash 1 in 10, Duration of Prophylactic effect 10 days, Treatment course duration 1 day. The alternative differed from the option whose attributes were varied in terms of Cost (MK120; $1.10) and Treatment Course Duration (3 days); the price is based on results of price-tracking retail surveys of ACTs subsidized by the Global Fund to Fight AIDS, TB and Malaria in Ghana, Kenya, Nigeria and Tanzania [22]. At these values the initial probability of use (market share) of the treatment option that is affected by the change of value in each attribute described by the Table is 76.9%. The predictions were calculated using n=50 repetitions.
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Malaria Journal

ISSN: 1475-2875

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