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Time of response and reasons not to respond. Frequencies and percentages of sampled departments (n = 600).
| Frequency | Percent | |
| Sampled departments: | 600 | 100 |
| Valid departments | 518 | 86 |
| Closed down departments | 52 | 9 |
| Subordinate departments | 30 | 5 |
| Responding clinics: | 386 | 64 |
| Immediate response | 261 | 44 |
| First reminder | 79 | 13 |
| Second reminder | 46 | 8 |
| Non-responding departments: | 132 | 22 |
| Reason: Time | 33 | 6 |
| Reason: Relevancy | 5 | 1 |
| Reason: Other, or not stated | 25 | 4 |
| No contact | 69 | 12 |
