Meta-analysis of studies examining long-term construction injury rates

Area of Science:

• Occupational Health
• Construction Safety
• Injury Epidemiology

Background:

• The construction industry is recognized as a high-risk sector for workplace injuries.
• Understanding injury trends is crucial for developing effective safety interventions.

Purpose of the Study:

• To analyze the trends of fatal and non-fatal injuries in the construction industry.
• To evaluate injury data from publications between 1987 and 2010.

Main Methods:

• Inclusion of studies with at least two injury measurements over a medium- to long-term period.
• Analysis of fatal and non-fatal injuries categorized by workers per year and worked hours per year.
• Meta-regression analysis to identify relationships between time and risk reduction.

Main Results:

• A significant decrease in all injury types was observed between measurements.
• Fatal injuries decreased by 35% and non-fatal injuries by 33% per workers/year.
• Fatal injuries showed a 6% annual risk reduction, while non-fatal injury trends were not time-dependent.

Conclusions:

• Fatal injury reduction is linked to substantial safety interventions.
• Non-fatal injuries exhibit more variable, episodic changes.
• The worked hours/year metric is superior for comparing injury rates across different environments due to reduced heterogeneity.