Factors influencing age at first sexual intercourse for South African youth • Clifford O. Odimegwu, University of the Witwatersrand ; Amos O. Oyedokun, Obafemi Awolowo University

Adolescent pregnancy, abortion and birth rates across countries • Gilda Sedgh, Guttmacher Institute ; Lawrence B. Finer, Guttmacher Institute ; Akinrinola Bankole, Guttmacher Institute ; Susheela D. Singh, Guttmacher Institute ; Michelle Eilers, Guttmacher Institute

Adolescent fertility and early parenthood in Iran • Fatemeh Torabi, University of Tehran ; Abbas Askari-Nodoushan, University of Yazd, Iran