Combined search strategy and number of papers retrieved
| Search strategy | Number of papers retrieved |
| (WASH OR Water OR Sanitation OR Hygiene) AND health care (MeSH: delivery of Health care) AND developing countries (Mesh) AND (satisfaction OR acceptance) | 32 |
| (water OR hygiene OR sanitation) AND care seeking AND developing countries | 37 |
| ‘Patient Acceptance of Health Care’ AND (water OR sanitation OR hygiene) | 461 |
| Toilet AND (patient acceptance OR satisfaction) | 87 |
| Patient satisfaction AND developing countries | 367 |
| Total | 984 |