Table 7

Source of datasets

Studies reporting purely derivation setsAAA35 38
ACS65 73
Heart failure96 98
Hypothermia100
Unselected193 225
Studies reporting derivation and validation setsACS38 42 61 208
Asthma/COPD83 85 86
GI bleed88 95
Heart failure99
Meningitis101 102
Pneumonia127 131 146 148 151
Pulmonary embolism151
Sepsis154
Syncope180
Unselected215–217
Studies providing external validationAAA33 37 177 189 193 204 226–229
ACS34–36 43 44 46 47 49–51 56 59 66 72 74–80
Asthma/COPD82 84 86
GI bleed86 88–91 93–97
Myxoedema103
Pancreatitis107–114 117 118 121 122
Pneumonia123–129 131–134 136 138 139 141 144–147 149–152 154 155 157 158 160
Poisoning150
Pulmonary embolism163–165
Sepsis158 162 168 171 173 175 176 179
Surgical180–188 191 196 197
Syncope198 200–202
TIA188 203 205–207
Unselected190 194 195 211–214 216 219 220
Studies with secondary analysis of data collected for another purpose as derivation setACS40 45 53 54 69 71 73
Pancreatitis112
Studies with secondary analysis of data collected for another purpose as validation setACS37 39 41 48 52 53 63–65 67 68 71 73
GI bleed195
Heart failure97
Pancreatitis112
Pneumonia130 135 137 140 143 144 153
Poisoning149
Sepsis167 169 172 178
Unselected209 218 221
  • AAA, abdominal aortic aneurysm; ACS, acute coronary syndrome; COPD, chronic obstructive pulmonary disease; GI, gastrointestinal; TIA, transient ischaemic attack.