Covenant intervention | Work related sensitisation | −13% | −17% to −10% |
Upper respiratory symptoms | −6% | −8% to −3% |
Lower respiratory symptoms | −13% | −16% to −10% |
Work disabling asthmatic symptoms† | −13% | −29% to +3% |
|
Continuation of covenant | Work related sensitisation | −21% | −26% to −17% |
Upper respiratory symptoms | −14% | −17% to −10% |
Lower respiratory symptoms | −25% | −30% to −20% |
Work disabling asthmatic symptoms | −24% | −38% to −12% |
|
Hygienic intervention | Work related sensitisation | −21% | −25% to −17% |
Upper respiratory symptoms | −21% | −26% to −16% |
Lower respiratory symptoms | −46% | −52% to −40% |
Work disabling asthmatic symptoms | −46% | −57% to −33% |
|
Health surveillance intervention (I) | Work related sensitisation | 3% | −1% to 8% |
Upper respiratory symptoms | −4% | −8% to 0% |
Lower respiratory symptoms | −31% | −40% to −22% |
Work disabling asthmatic symptoms | −30% | −45% to −15% |
|
Health surveillance intervention (II) | Work related sensitisation | −2% | −6% to 2% |
Upper respiratory symptoms | 18% | 7% to 28% |
Lower respiratory symptoms | −58% | −66% to −50% |
Work disabling asthmatic symptoms | −59% | −71% to −45% |
|
Pre-employment screening | Work related sensitisation | −21% | −31% to −13% |
Upper respiratory symptoms | −14% | −23% to −4% |
Lower respiratory symptoms | −18% | −26% to −6% |
Work disabling asthmatic symptoms | −16% | −35% to 4% |