|Molecular Weight of Agent||Both|
|Specific Agent||Isocyanates, flour dust and enzymes, metalworking fluids, rosin based solder fume, wood dust|
|Occupation|| Workers in motor vehicle repair shops (MVR), bakers, workers in electronics and woodworking industries|
|Outcome/Diagnosis||Work-related short latency respiratory disease (SLRD) and asthma|
|Activity Intervention|| 1. Controlling isocyanates exposure in MVR.
2. Introduction of a maximum exposure limits (MEL) and a workplace exposure limit (WEL) for controlling flour dust.
3. Controlling inhalation exposure to metalworking fluids.
4. Introduction of MEL and WEL for and controlling inhalation exposure to rosin-based solder flux fume (RBSFF).
5. Controlling inhalation exposure to wood dust.|
|Participation Rate||No report of participation rate.|
|Intervention Effectiveness||Ratio of incidence rate ratios (RIRRs) for SLRD and asthma:
1. The incidence of SLRD declined significantly for all agents in MVR workers compared to other workers during the intervention period (RIRR: 0.34, 95% CI 0.12 to 0.95).
2. Throughout the period of analysis (1996 – 2010), there was a significant decline in the incidence of SLRD and asthma attributed to RBSFF relative to all other agents (annual RIRR 0.94, 95% CI 0.90 to 0.99, and annual RIRR 0.95, 95% CI 0.90 to 1.00, respectively).|