Study characteristics
| Study | Year | Design | Specialty | Sample size | Duration | Decision category |
|---|---|---|---|---|---|---|
| AAP | 2016 | Multicentre prospective cohort study | General surgery | 126 | 3 years | Diagnosis |
| Boots | 2005 | Multicentre prospective cohort study | Intensive care | 470 | 7 months | Diagnosis |
| Bruyninckx | 2009 | Multicentre prospective cohort study | General practice | 1,996 | 1 year | Diagnosis |
| Buntinx | 1991 | Prospective cohort study | General practice | 318 | 2 months | Diagnosis |
| Davis | 2005 | Single centre prospective cohort study | Emergency medicine | 276 | 1 year | Diagnosis |
| Green | 2008 | Single centre prospective cohort study | Emergency medicine | 592 | 4 months | Diagnosis |
| Lave | 1997 | Single centre prospective cohort study | General medicine | 1,778 | Unclear | Diagnosis |
| McCullough | 2002 | Multicentre international prospective cohort study | Emergency medicine | 1,538 | 21 months | Diagnosis |
| Robaei | 2011 | Randomised clinical trial | Emergency medicine | 68 | Unclear | Diagnosis |