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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Contraception. 2016 Aug 16;95(1):77–89. doi: 10.1016/j.contraception.2016.08.002

Table 1A.

Base-Case Assumptions and Ranges for Sensitivity Analysis (%)

Variable Value Range Distribution Ref.
Population Demographics
Age Distribution
 15–19 17.8 16.9, 18.6 Dirichlet [34]
 20–24 16.8 15.9, 17.6 Dirichlet [34]
 25–29 16.8 15.9, 17.6 Dirichlet [34]
 30–34 15.8 15.0, 16.5 Dirichlet [34]
 35–39 16.3 15.4, 17.1 Dirichlet [34]
 40–44 16.8 15.9, 17.6 Dirichlet [34]
Married by Age
 15–19 3.1 3.0, 3.3 Beta [34]
 20–24 15.0 14.3, 15.8 Beta [34]
 25–29 41.1 39.1, 43.2 Beta [34]
 30–34 60.5 57.5, 63.5 Beta [34]
 35–39 68.3 64.9, 71.7 Beta [34]
 40–44 69.1 65.7, 72.6 Beta [34]
Sexually Active by Age
 15–19 41.5 39.4, 43.6 Beta [12]
 20–24 80.5 76.5, 84.5 Beta [12]
 25–29 89.9 85.4, 94.4 Beta [12]
 30–34 91.5 86.9, 96.1 Beta [12]
 35–39 92.4 87.8, 97.0 Beta [12]
 40–44 90.8 86.3, 95.3 Beta [12]
Contraception Failure Rate
 No Method 85.0 68.0, 100.0 Beta [1]
 Oral contraception 9.0 7.2, 10.8 Beta [1]
 Intrauterine Device 0.5 0.4, 0.6 Beta [1]
 Shot/ Injectable 0.1 0.1, 0.1 Beta [1]
 Vaginal Ring 9.0 7.2, 10.8 Beta [1]
 Transdermal Patch 9.0 7.2, 10.8 Beta [1]
 Implant 0.1 0.1, 0.1 Beta [1]
 Male condom 18.0 14.4, 21.6 Beta [1]
 Withdrawal 22.0 17.6, 26.4 Beta [1]
 Fertility awareness 24.0 19.2, 28.8 Beta [1]
 Other 16.2 13.0, 19.4 Beta [1]