Volume 16, Number 11—November 2010
Dispatch
Comparison of Survey Methods in Norovirus Outbreak Investigation, Oregon, USA, 2009
John Y. Oh
, June E. Bancroft, Margaret C. Cunningham, William E. Keene, Sheryl B. Lyss, Paul R. Cieslak, and Katrina Hedberg
, June E. Bancroft, Margaret C. Cunningham, William E. Keene, Sheryl B. Lyss, Paul R. Cieslak, and Katrina HedbergTable 2
Overall survey completion rate among participants in September 2009 bicycle ride, Oregon, USA, 2009
| Stratification variable | No. respondents/total no. participants (%)* |
p value | |
|---|---|---|---|
| Internet-based survey | Telephone survey | ||
| Sex | |||
| M | 95/153 (62) | 44/56 (79) | 0.03 |
| F |
34/48 (71) |
28/35 (80) |
0.34 |
| Age, y† | |||
| <50 | 48/86 (56) | 31/37 (84) | 0.001 |
| >50 |
80/114 (70) |
41/54 (76) |
0.44 |
| Living accommodations | |||
| Event organizer’s tents | 36/56 (64) | 18/21 (86) | 0.07 |
| Not in event organizer’s tents | 93/145 (64) | 54/70 (77) | 0.03 |
*Number of riders who answered the question compared with number of riders who were asked.
†Age was missing for 1 participant in the Internet-based survey.
