Table 1.

Countries included in the study and years of respective surveys.

country	year of survey (DHS)	years covered by all surveys	no. of regions
Kenya	1989, 1993, 1998, 2003	14	7
Tanzania	1992, 1996, 1999, 2004	12	6
Uganda	1988, 1995, 2000/2001, 2007	19	4
Zimbabwe	1988, 1994, 1999, 2005/2006	18	10