Collaboration members: location and institution leading the study
| WHO region | Institution |
| African region | |
| Africa (multisite project) | Millennium Villages Project, USA |
| Bahir Dar, Amhara, Ethiopia | University of Aberdeen, UK |
| Conakry, Guinea | Jhpiego, USA |
| Kayes Region, Mali | United States Agency for International Development (USAID) Applying Science to Strengthen and Improve Health Systems |
| Port Harcourt, Rivers State, Nigeria | University of Port Harcourt Teaching Hospital |
| Orognum, Rivers State, Nigeria | Rivers State Primary Health Care Management Board |
| United Republic of Tanzania | African Medical and Research Foundation (AMREF) Health Africa |
| Uganda | Management Sciences for Health, USA |
| Region of the Americas | |
| Buenos Aires, Argentina | Hospital Alemán |
| Rio Grande do Sul, Brazil | School of Nursing, Universidade Federal do Rio Grande do Sul |
| São Paulo, Brazil | Conjunto Hospitalar do Mandaqui |
| Colombia | Universidad Nacional de Colombia |
| Mexico | The National Commission of Medical Arbitration (CONAMED, Comisión Nacional de Arbitraje Médico) |
| Lima, Peru | Hospital National Dos de Mayo |
| Punta del Este, Uruguay | Sanatorio Semm-Mautone |
| Brazil, Mexico, Peru & Venezuela (multinational project) | Instituto Nacional de Salud Pública |
| South-East Asia region | |
| Dhaka, Bangladesh | Centre for Reproductive Health and International Centre for Diarrhoeal Disease Research |
| South-western Bangladesh | James P Grant School of Public Health |
| Rajasthan, India | Jhpiego |
| Pondicherry, India | Pondicherry Institute |
| Banda Aceh and Yogyakarta, Indonesia | University of Göttingen, Germany |
| Colombo, Sri Lanka | De Soysa Hospital for Women |
| European region | |
| Mondovi, Piedmont, Italy | Azienda Sanitaria Locale Cn1 |
| Tuscany, Italy | Clinical Risk Management and Patient Safety Center |
| Barcelona, Spain | Hospital del Mar-Parc de Salut Mar |
| Eastern Mediterranean region | |
| Cairo, Egypt | Ain Shams Faculty of Medicine |
| Mashhad, Islamic Republic of Iran | Mashhad University of Medical Sciences |
| Zgharta, Lebanon | Saydet Zgharta Hospital |
| Kyber Pakhtunkwha, Pakistan | University of Göttingen, Germany |
| Rawalpindi, Pakistan | Holy Family Hospital, Rawalpindi Medical College |
| Khartoum, Sudan | Royal Care International Hospital |
| Khartoum, Sudan | Omdurman Maternity Hospital |
| Western Pacific region | |
| Pudong, Shanghai, China | Nursing School of the Second Military Medical University and Shanghai Pudong New Area People's Hospital |
| Manila, Philippines | Medical City Hospital |