Characteristics of the patients with regard to the impact of VIT on work
| Impact of VIT on work | |||
|---|---|---|---|
| Positive n=44 | Negative or indifferent n=137 | p Value | |
| Female, n (%) | 12 (27.3) | 31 (22.6) | NS |
| Age, mean±SD | 49.7±11.7 | 46.8±10.3 | NS |
| VIT, n (%) | |||
| Ongoing | 22 (50) | 100 (73) | <0.01 |
| Concluded | 22 (50) | 37 (27) | |
| Treated with VIT for, n (%) | |||
| Apis mellifera | 11 (25) | 48 (35) | NS |
| Vespula sp. | 17 (38.6) | 49 (35.8) | NS |
| Polistes sp. | 13 (22.7) | 31 (22.6) | NS |
| Vespa crabro | 6 (13.6) | 9 (6.6) | NS |
| Mueller reaction grade, n (%) | |||
| I | 7 (15.9) | 26 (19) | NS |
| II | 6 (13.6) | 28 (20.4) | |
| III | 12 (27.3) | 25 (18.2) | |
| IV | 19 (43.2) | 58 (42.3) | |
| Ever stung before the reaction, n (%) | 38 (86.4) | 102 (74.5) | NS |
| Other severe Hymenoptera reactions, n (%) | 2 (4.5) | 11 (8) | NS |
| Years after the first severe reaction, mean±SD | 7.7±5.4 | 7.3±6.1 | NS |
| Having the severe reaction at work, n (%) | 17 (38.6) | 23 (16.8) | <0.005 |
| Work-related risk of exposure to Hymenoptera, n (%) | |||
| High | 28 (63.6) | 46 (33.6) | <0.01 |
| Occasionally high | 5 (11.4) | 35 (25.5) | |
| Low | 11 (25) | 56 (40.9) | |
| Self-employed worker, n (%) | 20 (45.5) | 38 (27.7) | <0.05 |
NS, not significant; VIT, venom immunotherapy.