| BCG | Bacillus Calmette–Guérin |
| DHS | Demographic and Health Surveys |
| DTP | Diphtheria–Tetanus–Pertussis Vaccine |
| DTP3 | Three Doses of Diphtheria–Tetanus–Pertussis Vaccine |
| Hib3 | Three Doses of Haemophilus influenzae type b Vaccine |
| IA2030 | Immunization Agenda 2030 |
| MICS | Multiple Indicator Cluster Surveys |
| NSS | Non-Standard National Health Surveys |
| PAR | Population Attributable Risk |
| RHS | Reproductive and Health Surveys |
| RII | Relative Index of Inequality |
| SII | Slope Index of Inequality |
| UNICEF | United Nations Children’s Fund |
| WHO | World Health Organization |
| WUENIC | WHO/UNICEF Estimates of National Immunization Coverage |