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Table 3 Summary of the estimated numbers of infected people treated for sexually transmitted infections

From: Formulas for estimating the costs averted by sexually transmitted infection (STI) prevention programs in the United States

Symbol

Description

Formula

Cw

Number of women with chlamydia treated

X1 + 0.2(X4) + 0.57(X7) + 0.42(X10)

Ĉw

Number of women with chlamydia treated, excluding partner services

X1 + 0.2(X4) + 0.42(X10)

Cm

Number of heterosexual men with chlamydia treated

Y1 + 0.35(Y4) + 0.57(Y7) + 0.2(Y10)

Ĉm

Number of heterosexual men with chlamydia treated, excluding partner services

Y1 + 0.35(Y4) + 0.2(Y10)

Cmsm

Number of MSM with chlamydia treated

Z1 + 0.35(Z4) + 0.57(Z7) + 0.2(Z10)

Ĉmsm

Number of MSM with chlamydia treated, excluding partner services

Z1 + 0.35(Z4) + 0.2(Z10)

Gw

Number of women with gonorrhea treated

X2 + 0.2(X5) + 0.46(X8) + 0.15(X11)

Äœw

Number of women with gonorrhea treated, excluding partner services

X2 + 0.2(X5) + 0.15(X11)

Gm

Number of heterosexual men with gonorrhea treated

Y2 + 0.35(Y5) + 0.46(Y8) + 0.15(Y11)

Äœm

Number of heterosexual men with gonorrhea treated, excluding partner services

Y2 + 0.35(Y5) + 0.15(Y11)

Gmsm

Number of MSM with gonorrhea treated

Z2 + 0.35(Z5) + 0.46(Z8) + 0.15(Z11)

Äœmsm

Number of MSM with gonorrhea treated, excluding partner services

Z2 + 0.35(Z5) + 0.15(Z11)

Sw

Number of women with syphilis treated

X3 + 0.7(X6) + 0.3(X9)

Åœw

Number of women with syphilis treated, excluding partner services

X3 + 0.7(X6)

Sm

Number of heterosexual men with syphilis treated

Y3 + 0.7(Y6) + 0.3(Y9)

Åœm

Number of heterosexual men with syphilis treated, excluding partner services

Y3 + 0.7(Y6)

Smsm

Number of MSM with syphilis treated

Z3 + 0.7(Z6) + 0.3(Z9)

Åœmsm

Number of MSM with syphilis treated, excluding partner services

Z3 + 0.7(Z6)

  1. The Xi, Yi, and Zi terms are defined in Table 2. Syphilis cases include primary and secondary (P&S) syphilis only.