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Table 4 Extrapolation of study findings to the entire NHS

From: Missing Clinical Information in NHS hospital outpatient clinics: prevalence, causes and effects on patient care

Percentages found in this study Estimated annual numbers of patients if study findings are applied to:
  General surgery outpatients
(n = 4.4 million)
All outpatient attendances
(n = 66 million)
1.5% missing medical records 66,300 991,300
15% missing clinical information 663,000 9,913,000
4.7% impact on patient care 207,700 3,106,000
1.7% new appointment booked 75,150 1,124,000
3.2% decision without information 141,500 2,115,000
3% risk of harm 132,600 1,983,000