| Country | Year | Total sample | Type of representation | School response Rate | Student response rate | Participation rate | Boys (Wtd.%) | Girls (Wtd.%) |
| Sub-Saharan Africa | Botswana | 2005 | 2,197 | National | 100% | 95% | 95% | 45.0% | 55.0% | Ghana | 2007 | 6,236 | National | 97% | 86% | 83% | 53.4% | 46.6% | Kenya | 2003 | 3,691 | National | 96% | 87% | 84% | 48.7% | 51.3% | Namibia | 2004 | 6,367 | National | 95% | 86% | 82% | 45.2% | 54.8% | Swaziland | 2003 | 7,341 | National | 97% | 99% | 96% | 36.2% | 63.8% | Uganda | 2003 | 3,215 | National | 90% | 76% | 69% | 51.2% | 48.8% | Tanzania | 2006 | 2,176 | Dar Es Salaam | 100% | 87% | 87% | 47.9% | 52.1% | Zambia | 2004 | 2,257 | National | 94% | 75% | 70% | 48.9% | 51.1% |
| Central and South America | Argentina | 2007 | 1,980 | National | 94% | 82% | 77% | 48.0% | 52.0% | Guyana | 2004 | 1,212 | National | 100% | 80% | 80% | 49.0% | 51.0% | Trinidad and Tobago | 2007 | 2,969 | National | 100% | 78% | 78% | 49.8% | 50.2% | Uruguay | 2006 | 3,406 | National | 95% | 75% | 71% | 45.2% | 54.8% |
| ASIA | Indonesia | 2007 | 3,116 | National | 98% | 95% | 93% | 49.9% | 50.1% | Myanmar | 2007 | 2,806 | National | 100% | 95% | 95% | 50.8% | 49.2% | Sri Lanka | 2008 | 2,611 | National | 100% | 89% | 89% | 50.0% | 50.0% | Thailand | 2008 | 2,767 | National | 100% | 93% | 93% | 48.5% | 51.5% | China | 2003 | 2,348 | Beijing | 100% | 99% | 99% | 50.5% | 49.5% | Philippines | 2003 | 7,338 | National | 99% | 85% | 84% | 43.2% | 56.8% |
| Eastern Mediterranean | Egypt | 2006 | 5,349 | National | 100% | 87% | 87% | 51.9% | 48.1% | Djibouti | 2007 | 1,777 | National | 85% | 98% | 83% | 60.2% | 39.8% | Jordan | 2004 | 2,457 | National | 100% | 95% | 95% | 50.3% | 49.7% | Lebanon | 2005 | 5,115 | National | 92% | 96% | 88% | 47.7% | 52.3% | Libyan Arab Jamahiriya | 2007 | 2,242 | National | 100% | 98% | 98% | 50.1% | 49.9% | Morocco | 2006 | 2,670 | National | 100% | 84% | 84% | 54.7% | 45.3% | Oman | 2005 | 2,979 | National | 100% | 97% | 97% | 52.6% | 47.4% | United Arab Emirates | 2005 | 15,790 | National | 97% | 91% | 89% | 50.0% | 50.0% |
| United States | US | 2009 | 16,410 | National | 81% | 88% | 71% | 47.8% | 52.2% |
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