Table 2

Difference-in-difference: OLS models of the impact of the New Deal policy in Schiphol on aircraft noise levels in LASA participants, 2005–2012

Model 1
(15 km as threshold)
β		Model 2
(10 km as threshold)
β
1. Policy exposure (year=2012)−0.053
(0.487)		0.206
(0.434)
2. Treatment group (=close to Schiphol)1.48***
(0.199)		3.114***
(0.187)
3. Policy exposure×Treatment0.916*
(0.345)		0.768*
(0.341)

  • Robust SEs clustered at the postcode level are reported.

  • Further covariates include participants’ age, marital status, employment, retirement, household income, physical functioning and year.

  • Stars represent statistical significance, as follows: *p<0.05; **p<0.01; ***p<0.001.

  • LASA, Longitudinal Aging Study Amsterdam; OLS, ordinary least squares.