Table 4

Regression statistics for hospital admissions

Airborne particulate effect
OutcomeCoefficientSEp Value
Asthma−0.000290.001400.84 (NS)
Bronchs0.004330.002020.03 (*)
COPD−0.000900.002350.70 (NS)
  • *Statistically significant at the predefined 5% confidence level.

  • The coefficient estimate of 0.00433 suggests an expected increase of 4.3% in bronchitis cases for each increase in PM10 of 10 μg/m3.

  • Bronchs, bronchitis/bronchiolitis; COPD, chronic obstructive pulmonary disease; PM10, particulate matter with a diameter below 10 µ.