Telephone sampling data and response rates for drowning prevention campaign surveys
| Pre-campaign (March 1992) | Tracking surveys (September 1992, September 1993) | Post-campaign (September 1994) | |
|---|---|---|---|
| *Data not available. | |||
| †Response proportion=(completed interviews)/(qualified contacts). | |||
| ‡Some families are in the table more than once because they had children in more than one age category. | |||
| Total phone contacts | 697 | * | 1859 |
| Refusals | 224 | * | 859 |
| Not qualified | 141 | * | 520 |
| Completed interviews | 332 | 200 | 480 |
| Response proportion† | 60% | 36% | |
| Interviewed families by age of child (years)‡ | |||
| 1–4 | 150 | 100 | 176 |
| 5–9 | 181 | 100 | 273 |
| 10–14 | 171 | na | 254 |