Table 1 Characteristics of subjects who were mailed questionnaires and of enrolled subjects.
From: Factors associated with influenza vaccination status of residents of a rural community in Japan
| Â | Mailed | Responded | Â | |||
|---|---|---|---|---|---|---|
Age group | Total | Total | Males | Females | Unknown | Response rate |
Under 1 year | 11 | 5 | 4 | 1 | 0 | 45% |
1 year | 16 | 9 | 5 | 4 | 0 | 56% |
2 years | 9 | 3 | 3 | 0 | 0 | 33% |
Preschool | 60 | 24 | 12 | 12 | 0 | 40% |
Elementary school | 102 | 39 | 20 | 19 | 0 | 38% |
Junior-high school | 75 | 37 | 14 | 21 | 2 | 49% |
High school | 70 | 26 | 13 | 13 | 0 | 37% |
Unknown but <18 years | Â | 1 | 0 | 1 | 0 | Â |
18 to 29 years | 363 | 110 | 55 | 55 | 0 | 30% |
30 to 49 years | 537 | 229 | 90 | 137 | 2 | 43% |
50 to 64 years | 693 | 304 | 139 | 162 | 3 | 44% |
65 to 79 years | 532 | 275 | 135 | 138 | 2 | 52% |
80 years or older | 197 | 100 | 39 | 58 | 3 | 51% |
Unknown but ≥18 years |  | 20 | 5 | 4 | 11 |  |
Total | 2665 | 1182 | 534 | 625 | 23 | 44% |