0185-3325 0185-3325 S0185-33252018000300139 10.17711/sm.0185-3325.2018.018 México México México 00 06 2018 00 06 2018 41 3 139 144

2008 20 3 3 292-301 1991 43-52 2005 40 7 7 519-28 2017 118 6 6 910-7 1998 55 7 7 626-32 1986 99 1 1 2009 18 2 2 113-26 1989 2 1 1 29-47 2005 8 1 1 79-90 1987 11 2 2 201-11 1998 37 2 2 147-54 2004 1021 1 1 1-22 1989 13 3 3 403-8 2004 Unidad de Estudios de la Opinión del Instituto de Investigaciones Sociales 2011 1996 20 10 10 953-61 2010 13 2 2 990-9 2001 30 3 3 376-84 1994 2001 25 25 425-46 2008 9 12 12 2013 42 3 3 323-47 1998 10 3 3 298-307 2007 116 1 1 1991 30 2 2 257-65 1991 30 5 5 776-83 1983 2002 360 9339 9339 1083-8 2002 51 4 4 288-97 2012 70 3 3 780-8 2005 41 1 1 8-21 1992 60 3 3 2008 50 s1 s1 29-37 2001 135 1 1 17-36 1970 2008 32 2 2 312-9 2003 27 1 1 33-44 2000 15 1 1 3-15 1992 4 1 1 97-112 United Nations Children’s Fund 2006 2007 31 1 1 71-84 1999 156 8 8 1223-9 World Health Organization 1999 World Health Organization 2017