Table 2 Base-case results from (a) societal perspective (including productivity loss) and (b) with direct costs only (no productivity loss)
From: COVID-19 testing protocols to guide duration of isolation: a cost-effectiveness analysis
Optiona | Testing cost | Medical cost | Productivity loss for index infection | Net cost | Secondary infections | Incremental cost | Secondary infections averted | Incremental cost per secondary infection averted |
|---|---|---|---|---|---|---|---|---|
2a. Societal perspective (including productivity loss) | ||||||||
5-day isolation, no test | $0 | $33,086 | $0 | $33,086 | 23.04 | n/a | n/a | n/a |
Symptom check on day 5 | $0 | $25,605 | $19,368 | $44,973 | 17.83 | $11,887 | 5.21 | Extended dominatedb |
Antigen test on day 5 (8-day isolation) | $1,000 | $14,391 | $38,564 | $53,954 | 10.02 | $20,868 | 13.02 | Extended dominated b |
Antigen test on day 6 | $1,000 | $4,132 | $58,056 | $63,189 | 2.88 | $30,103 | 20.16 | $1,493 |
Antigen test on day 5 | $1,000 | $8,159 | $64,273 | $73,432 | 5.68 | $10,243 | -2.80 | Dominated |
PCR test on day 5 | $15,000 | $5,112 | $72,099 | $92,211 | 3.56 | $29,022 | -0.68 | Dominated |
2b. Direct costs only (no productivity loss) | ||||||||
Antigen test on day 6 | $1,000 | $4,132 | - | $5,132 | 2.88 | n/a | n/a | Dominant |
Antigen test on day 5 | $1,000 | $8,159 | - | $9,159 | 5.68 | $4,027 | -2.80 | Dominated |
Antigen test on day 5, (8-day isolation) | $1,000 | $14,391 | - | $15,391 | 10.02 | $10,258 | -7.14 | Dominated |
PCR test on day 5 | $15,000 | $5,112 | - | $20,112 | 3.56 | $14,979 | -0.68 | Dominated |
Symptom check on day 5 | $0 | $25,605 | - | $25,605 | 17.83 | $20,472 | -14.95 | Dominated |
5-day isolation, no test | $0 | $33,086 | - | $33,086 | 23.04 | $27,953 | -20.16 | Dominated |