Table 1 Described information for the data collection conducted in Spain, Colombia and Bolivia
Spain | Colombia | Bolivia | |
|---|---|---|---|
Sampling universe | 356 physicians from hospitals, health care services and research centres of the Canary Islands Health Service | 184 physicians affiliated to the Society of Surgery Service, San José Hospital of Bogotá | 350 physicians from hospitals and health care centres in Sucre |
Sample | 113 | 118 | 279 |
Interview | Self-administered questionnaire | Self-administered questionnaire | Self-administered questionnaire |
Margin of error | 7.6% p = q = 95% confidence level | 5.4% p = q = 95% confidence level | 2.7% p = q = 95% confidence level |
Fieldwork | January to June 2012 | February to April 2012 | August to September 2011 |