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. Author manuscript; available in PMC: 2013 Nov 21.
Published in final edited form as: Am J Manag Care. 2011 Oct;17(10):693–700.

Table 2.

Incremental Cost-Effectiveness Ratios for Maternal Staphylococcus aureus Screening and Decolonization Before Cesarean Deliverya

ICER by Probability of Staphylococcus aureus Colonization, $/QALY
Screening/Wound Culture Method 1% 5% 10% 20% 30% 40% 50%
25% Probability of
decolonization success
  Agar/agar 10,631,077 1,313,767 922,940 402,799 283,477 203,473 179,303
  PCR/agar 18,244,123 5,085,743 3,410,549 1,360,614 951,692 758,448 607,422
  PCR/PCR 23,128,146 5,259,576 2,705,445 1,443,178 995,366 805,703 649,926
50% Probability of
decolonization success
  Agar/agar 3,942,569 869,499 344,783 184,171 110,492 79,069
(C–E) 		54,554
(C–E)
  PCR/agar 12,506,785 2,611,239 1,510,744 706,479 494,562 358,580 279,146
  PCR/PCR 8,643,593 2,501,542 1,501,343 761,849 481,436 341,625 281,063
75% Probability of
decolonization success
  Agar/agar 1,739,106 486,301 195,540 91,616
(C–E) 		55,068
(C–E) 		38,768
(C–E) 		25,121
(C–E)
  PCR/agar 7,751,050 2,134,213 960,480 478,422 309,852 217,078 170,734
  PCR/PCR 8,488,401 1,791,167 963,867 468,356 299,476 212,607 162,942
90% Probability of
decolonization success
  Agar/agar 1,512,341 434,147 174,660 69,714
(C–E) 		37,634
(C–E) 		19,491
(C–E) 		9993
(C–E)
  PCR/agar 9,726,700 1,700,280 804,716 367,620 245,711 172,807 133,869
  PCR/PCR 14,427,708 1,482,124 776,970 377,815 230,870 165,887 128,213

ICER indicates incremental cost-effectiveness ratio; PCR, polymerase chain reaction; QALY, quality-adjusted life-year.

a

Cells with boldface values and delineated by (C–E) indicate scenarios in which the intervention was cost-effective when values below $50,000 to $100,000 per QALY were considered cost-effective.