Table 2

Reliability of each clinical system measured

SystemReported reliability (95% CI) by organisation (A–G)Overall reported reliability (95% CI) across all organisationsp values (null hypothesis: all organisations are equal)
Clinical information availability in hospital outpatient clinics

  • 96% (94% to 98%)

  • n=411

  • A

  • 73% (69% to 77%)

  • n=423

  • E

  • 87% (83% to 91%)

  • n=327

  • G

  • 85% (83% to 87%) of outpatient appointments had all information available

  • n=1161

<0.001
Prescribing for hospital inpatients

  • 86% (85% to 87%)

  • n=2689

  • A

  • 88% (87% to 90%)

  • n=1812

  • B

  • 82% (80% to 84%)

  • n=2104

  • C

  • 85% (84% to 86%) of prescriptions were error free

  • n=6605

<0.001
Equipment availability in the operating theatre

  • 81% (76% to 86%)

  • n=258

  • A

  • 63% (51% to 75%)

  • n=67

  • D

  • 88% (83% to 93%)

  • n=165

  • F

  • 81% (78% to 85%) of operations had no equipment problems

  • n=490

<0.001
Systems for inserting intravenous lines

  • 80% (71% to 89%)

  • n=76

  • A

  • 88% (80% to 96%)

  • n=62

  • D

  • 88% (84% to 92%)

  • n=212

  • F

  • 87% (84% to 91%) of line insertions had all equipment available

  • n=350

0.236

  • Definitions are given in table 1.

  • More detailed statistical analysis for each system is available in the main research report.11