Table 6.
Retention Periods for Nonpermanent Retention of Secondary Data
| Retention Periods | |||||
|---|---|---|---|---|---|
| Secondary Data | # of Respondents* | Mean Retention (Years) | SD | Min. Years Retained | Max. Years Retained |
| Diagnostic images/films | 45 | 7.1 | 2.74 | 2 | 13 |
| Fetal heart monitors | 30 | 21.6 | 8.70 | 9 | 50 |
| Disease index | 11 | 14.7 | 12.6 | 5 | 50 |
| Operative index | 12 | 14.1 | 12.4 | 4 | 50 |
| Physician index | 10 | 15.5 | 13.1 | 5 | 50 |
| Register of births | 3 | 23.3 | 23.1 | 10 | 50 |
| Register of deaths | 5 | 17.4 | 18.3 | 7 | 50 |
| Register of surgeries | 5 | 16.6 | 19.9 | 3 | 50 |
*
Respondents who supplied a specified number of years that secondary data is retained