Baseline Characteristics of Intervention and Control Groups
| Characteristic | Intervention % (n/n) | Control % (n/n) | Rate Ratio (95%CI) | PValue |
|---|---|---|---|---|
| CI = confidence interval. | ||||
| a Including a small number of ancillary workers. | ||||
| b Any of ischemic heart disease, congestive heart failure, diabetes, asthma, and chronic obstructive pulmonary disease. | ||||
| c Preintervention questionnaire data. | ||||
| Profession | .648 | |||
| Physician | 38 (62/163) | 32.6 (59/181) | 1.17 (0.88–1.55) | |
| Nurse | 20.2 (33/163) | 19.3 (35/181) | 1.05 (0.68–1.60) | |
| Pharmacist | 16.6 (27/163) | 20.4 (37/181) | 0.81 (0.52–1.27) | |
| Administrationa | 25.2 (41/163) | 27.6 (50/181) | 0.91 (0.64–1.30) | |
| Female | 75.5 (123/163) | 79.0 (143/181) | 0.96 (0.85–1.07) | .433 |
| Aged 50–66 y (compared with 22–49 y) | 54.6 (89/163) | 45.9 (83/181) | 1.19 (0.96–1.47) | .105 |
| Chronic diseaseb | 12.0 (18/150) | 10.6 (17/161) | 1.14 (0.61–2.12) | .688 |
| Immunized previous season | 27.0 (44/163) | 19.9 (36/181) | 1.36 (0.92–2.00) | .119 |
| “It is desirable to immunize primary health clinic staff”c | 71.0 (76/107) | 67.5 (83/123) | 1.05 (0.89–1.25) | .561 |
| “The vaccine cannot cause influenza”c | 33.0 (35/106) | 45.1 (55/122) | 0.73 (0.52–1.02) | .063 |