Table 1.
Summary of surveys reporting vaccination coverage estimates during 2000–2019 by survey type and country characteristics.
| Number of countries conducting surveys |
Frequency of surveys by survey type |
|||||
|---|---|---|---|---|---|---|
| MICS | DHS | OCS | EPI | All Surveys | ||
| n = 140 | n = 172 | n = 193 | n = 86 | n = 195 | n = 646 | |
| Survey field work year | ||||||
| 2000–2004 | 99 | 47 | 42 | 24 | 38 | 151 |
| 2005–2009 | 116 | 45 | 55 | 32 | 50 | 182 |
| 2010–2014 | 105 | 53 | 59 | 21 | 65 | 198 |
| 2015–2019 | 86 | 27 | 37 | 9 | 42 | 115 |
| WHO Region | ||||||
| Africa (n = 47) | 45 | 72 | 100 | 10 | 107 | 289 |
| Americas (n = 35) | 23 | 22 | 30 | 17 | 19 | 88 |
| Eastern Mediterranean (n = 21) | 16 | 24 | 15 | 23 | 6 | 68 |
| Europe (n = 53) | 26 | 25 | 14 | 4 | 20 | 63 |
| South-East Asia (n = 11) | 11 | 15 | 20 | 17 | 28 | 80 |
| Western Pacific (n = 27) | 19 | 14 | 14 | 15 | 15 | 58 |
| World Bank income group | ||||||
| Low-Income (n = 31) | 31 | 50 | 67 | 16 | 62 | 195 |
| Middle-Income (n = 104) | 94 | 122 | 126 | 68 | 97 | 413 |
| Lower-Middle (n = 46) | 46 | 72 | 80 | 40 | 79 | 271 |
| Upper-Middle (n = 58) | 48 | 50 | 46 | 28 | 18 | 142 |
| High-Income (n = 57) | 15 | 0 | 0 | 2 | 36 | 38 |
| Gavi-73 (n = 73) | 72 | 115 | 142 | 49 | 129 | 435 |
MICS, Multiple Indicator Cluster Survey; DHS, Demographic and Health Survey; OCS, Other coverage survey; EPI, Expanded Programme on Immunization survey.