Table 3. GPs unfamiliar with clinical prediction rules (CPRs): GPs who had never heard of or who were not sure whether they heard of respective CPRs, N = 401
CPR2014 survey, n (%)2019 survey, n (%)Change in proportion of GPs unfamiliar to CPR
'Never heard of''Not sure'Total'Never heard of''Not sure'Total%95% CIP value99.5% CIaP valuea
Cardiovascular disease
 JBS3 risk calculatorb 19 (4.7)8 (2.0)27 (6.7)122 (30.4)28 (7.0)150 (37.4)30.725.3 to 36.0<0.00123.0 to 38.3<0.011
 QRISK2 or QRISK3c 64 (16.0)24 (6.0)88 (21.9)4 (1.0)0 (0.0)4 (1.0)–20.9–25.1 to –16.8<0.001–26.9 to –15.0<0.011
 ASSIGN score222 (55.4)32 (8.0)254 (63.3)
 UKPDS risk engine140 (34.9)23 (5.7)163 (40.6)
 SCORE risk charts265 (66.1)67 (16.7)332 (82.8)273 (68.1)37 (9.2)310 (77.3)–5.5–11.0 to 0.00.052–13.4 to 2.40.571
 PROCAM score328 (81.8)50 (12.5)378 (94.3)337 (84.0)36 (9.0)373 (93.0)–1.2–4.6 to 2.10.469–6.1 to 3.61.000
 Framingham risk scores4 (1.0)2 (0.5)6 (1.5)18 (4.5)4 (1.0)22 (5.5)4.01.5 to 6.50.0020.4 to 7.60.023
 ACC/AHA pooled cohort equationd 347 (86.5)30 (7.5)377 (94.0)
 New Zealand tables249 (62.1)64 (16.0)313 (78.1)328 (81.8)26 (6.5)354 (88.3)10.25.1 to 15.4<0.0012.9 to 17.6<0.011
 New Zealand primary prevention equationsd 352 (87.8)28 (7.0)380 (94.8)
 WHO/ISH risk prediction chartsd 262 (65.3)33 (8.2)295 (73.6)
Stroke and venous thromboembolism
 ABCD2, ABCD3 or ABCD3-I scoree 128 (31.9)45 (11.2)173 (43.1)98 (24.4)14 (3.5)112 (27.9)–15.2–21.8 to –8.7<0.001–24.6 to –5.8<0.011
 California score336 (83.8)50 (12.5)386 (96.3)341 (85.0)31 (7.7)372 (92.8)–3.5–6.6 to –0.30.030–8.0 to 1.00.329
 CHADS2 or CHA2DS2-VASc scoref 160 (39.9)48 (12.0)208 (51.9)5 (1.2)2 (0.5)7 (1.7)–50.1–55.2 to –45.1<0.001–57.4 to –42.9<0.011
 HAS-BLED scored 12 (3.0)4 (1.0)16 (4.0)
 Wells scores for deep vein thrombosis109 (27.2)30 (7.5)139 (34.7)12 (3.0)5 (1.2)17 (4.2)–30.4–35.5 to –25.4<0.001–37.7 to –23.2<0.011
 Wells scores for pulmonary embolism169 (42.1)59 (14.7)228 (56.9)31 (7.7)21 (5.2)52 (13.0)–43.9–49.7 to –38.0<0.001–52.3 to –35.5<0.011
 Geneva or revised Geneva scored 315 (78.6)32 (8.0)347 (86.5)
 PESI or simplified PESId 318 (79.3)30 (7.5)348 (86.8)
  • aAdjusted for conducting 11 significance tests using the Bonferroni method. bJBS2 risk calculator or JBS2 risk charts' were included in the 2014 survey. c'QRISK or QRISK2' were included in the 2014 survey. dThese CPRs were not included in the 2014 survey. e'ABCD or ABCD2' were included in the 2014 survey. f'CHADS or CHADS2' were included in the 2014 survey. ACC/AHA = American College of Cardiology/American Heart Association. CPR = clinical prediction rule. JBS = Joint British Societies. PESI = Pulmonary Embolism Severity Index. WHO/ISH = World Health Organization/International Society of Hypertension.