Table 4 Adverse events (AEs) by age: number of reviewed admissions, number of admissions with an AE and proportions judged preventable, contributed to permanent disability (excluding death) and death

Age	No of reviewed admissions	No of admissions with AE(s)	Percentage of AEs†	Preventable (row %†)	Permanent disability (row %†)	Deaths(row %†)
1–18	330	7	1.7	20.0	0	0
19–40	660	38	5.0	40.0	7.4	1.9
41–65	2332	180	5.5	37.5	2.4	4.3
66–79	2582	250	6.1	39.9	4.3	12.3
80+	2013	188	8.2	46.2	9.8	15.2
Total	7917*	663	5.7	39.9	5.0	8.6

*Date of birth was missing for nine patients.
†Percentages were weighted for oversampling of deceased patients and of patients admitted to a university hospital.