Table II.
Concomitant positive patch-test reactions to plant and fragrance markers in the Swedish baseline series in patients positive to propolis of any origin and in patients negative to propolis
| Patients positive to propolis (n = 44)a | Patients negative to propolis (n = 677) | ||||
|---|---|---|---|---|---|
| n (%) 95% CI | n (%) 95% CI | p-value | |||
| Myroxolon pereirae resin | 19 (43) | 27–66 | 51 (7.5) | 5.7–9.8 | < 0.0001 |
| Colophonium | 10 (23) | 11–40 | 12 (1.8) | 0.9–3.0 | < 0.0001 |
| Lichen acid mix | 1 (2) | 0.1–11 | 10 (1.5) | 0.7–2.6 | n.s. |
| Fragrance mix I | 6 (14) | 7–31 | 40 (5.9) | 4.3–8.0 | 0.019 |
| Fragrance mix II | 3 (7) | 1.7–19 | 16 (2.4) | 1.4–3.8 | n.s. |
| Sesquiterpene lacton mix | 0 (0) | 0 | 1 (0.1) | 0.07–7.3 | n.s. |
a
One patient was not tested with the baseline series.
CI: confidence interval; n.s.: not significant.