It is therefore reasonable to assume that the disproportionate increase of consultations in the Swiss system is attributable to the scheme of reimbursement in Swiss out-patient care.
After all, she had to deal with a political environment where it was considered acceptable for a diplomat to tell a UN general assembly debate in 1982 that her actions over the Falklands were attributable to "the glandular system of women".
The lack of effectiveness of treatment is explained by factors attributable to the health system, the doctor and the patient.
The only island to report a significant change attributable to the sewerage system installation was Hinnavaru, where the health impacts were seen as negative.
Descriptive analysis was undertaken to present proportions of cases (with 95% CI) attributable to the healthcare system or aspects of the model.
This may be attributable to the National Health Insurance system adopted in the Republic of Korea, which may have helped reduce the socioeconomic gap in medical care utilization [ 38].
These may have been more appropriately classified as being attributable to the healthcare system, but we analysed these cases as they were classified by reviewers.
Exposure to wireless working was therefore associated with a reduction in the proportion of incidents that were attributable to the H@N system (OR=0.308, p=0.028 by χ test).
The possible limitations of the study consist of the disease categorization, a possible bias in patient Classification, the metrics for smoking status, and the operational metric for costs, attributable to the information system used.
Possible limitations of the study relate to the categorisation of diseases, the possible bias in patient classification, the selection of therapeutic groups, the extent of operating costs attributable to the information system, the potential impact of disease under-reporting, the variability of professional practice and information biases related with retrospective observational data.
Where a delivery system is in operation at the national level, pre and post implementation cross sectional observational studies can be undertaken using standard sampling techniques to provide coverage estimates attributable to the delivery system being evaluated that are representative at the national level.
