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. 2022 Jun 4;22:1120. doi: 10.1186/s12889-022-13451-y

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 2 — Percentage ever had sex by age 18 among the birth cohort turning 15 in the year 2015. The island countries Comoros and São Tomé & Príncipe are represented in the bottom left. Countries without data are coloured the same as the background. Numerical estimates and 95% uncertainty interval are in Supplemental Table S2. Country names corresponding to the three-letter ISO 3166-1 alpha-3 code labels are in Fig. 1 caption and Supplemental Table S4. The map was created using R 4.0.1 using vector boundaries from Natural Earth (https://www.naturalearthdata.com/about/terms-of-use/)