[Iatrogenic disease observed in a hospital setting. II. Analysis of causes and suggestions for novel preventive measures].

In a previous article, we reported the results of a survey of iatrogenic illness in teaching hospitals. In the second part of this study, we shall consider the origins of the 109 adverse events which occurred in a 24-hour period among 1733 hospital patients in a total of 43 units (mean prevalence, 6.28%). In a total of 89 cases (83 of which were drug-related and 6 of which were of various non-instrumental causes), self-treatment and/or poor patient compliance appeared to be the main cause in 16 (18%); negligence or erroneous prescription (non-respect of a contraindication, wrong indication or dosage, excessive duration of treatment, inadequate monitoring, etc...) appeared to be responsible in 27 cases (30.3%). It may be that at least some of these cases of iatrogenic illness due to errors or negligence on the part of the patient and/or physician (48.3%) could be avoided in future by better training of health personnel and improved public health education. The human and financial costs of iatrogenic illness show that risk-prevention measures are required; we propose a number of strategies concerning both initial training in medical school and ongoing education in therapeutics, together with ways of improving the behaviour of both physicians and the pharmaceutical industry. The latter suggestions are addressed at the media and the health authorities; some concern legislation, while others are aimed at improving early public health education, an essential element in this setting.