Is free pre-primary education associated with increased primary school completion? A global study

International Journal of Child Care and Education Policy

Table 1 Description of analytic sample compared with sample of all UN member states: income level and geographic region

	Countries in the in primary graduation rate regression (n = 104)	All UN member countries (n = 193)
Level of income (%)
Low	13	18
Lower-middle	33	29
Upper-middle	35	27
High	20	26
Geographic region (%)
Americas	26	18
East Asia and Pacific	13	16
Europe and Central Asia	21	28
Middle East and North Africa	12	10
South Asia	4	4
Sub-Saharan Africa	24	25

All percentages are rounded to the nearest whole number. Some percentages may not always sum exactly to 100% as a result of rounding. National income and regional groupings used are based on 2011 World Bank classifications