Table 1.
Summary of Salmonella contacts and responses for each phase of the project
| Project phase | Salmonella cases in NSW, n | Eligible cases invited, n (% of total) | Responses from those contacted, n (%) | Days from specimen date to contact, n (median (range)) | Responses resulting in intervention, n (%) |
|---|---|---|---|---|---|
| Phase 1: December 2012–March 2013 | 1440 | Letter: 275 (19.1%) | 61 (22.2%) Online: 48 Phone: 13 |
10a (7–32) | 0 (0%) |
| Phase 2: February 2014–April 2014 | 1487 | Online: 638 (42.9%) Letter: 63 (4.2%) |
199 (28.4%) Online: 186 (29.2%) Letter: 13 (20.6%) |
Online: 8 (4–34) Letter: 17a (11–33) |
18 (9.0%) |
| Phase 3: January 2015–April 2015 | 1552 | SMS: 475 (30.6%) | 218 (45.9%) | 5 (1–33) | 15 (6.9%) |
| Phase 4: September 2017–January 2020 | 7931 | SMS: 2197 (27.7%) | 1201 (55.9%) | 5 (1–30) | 33 (2.7%) |
a
Four days added to date letter sent to account for average letter transport times as reported by Australia post (3–5 days).