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The postponement of case investigation in different types of county in Yunnan Province, January 2013-June 2014
| Type of county | Total cases | Case investigation | ||
|---|---|---|---|---|
| ≤3 days | >3 days | |||
| No (%) | No (%) | Days of delay (Median) | ||
| Type 1 | 299 | 280 (94) | 19 (6) | 5 |
| Type 2 | 228 | 212 (93) | 16 (7) | 5 |
| Type 3 | 49 | 47 (96) | 2 (4) | 6 |
| Total | 576 | 539 (94) | 37 (6) | 5 |
χ 2 = 0.583, P = 0.747
