Table 1 Datasets to be linked and used in project Vitamin G1

Dataset 1. Health and well-being 1

All people listed in 104 GP practices. N = 300.000. Representative for Dutch population.

• perceived general health

•basic socio-economic and demographic variables, including ethnic background

•all diagnose-coded contacts and interventions with general practice during 12 months in 2000/1.

6-digit postcode

Second National Survey of Morbidity and Interventions in General Practice, 2001 [49]

Dataset 2. Health and well-being 2

Random sample of patients listed in 104 GP practices. N = 13.000. Representative for Dutch population. This is a subset of the subjects the first dataset.

as dataset 1, plus: • extensive health information

•health behavior (e.g. smoking, nutrition, physical activity)

•extensive socio-economic and demographic characteristics

•other relevant control variables (e.g. having a private garden, housing conditions)

6-digit postcode

Second National Survey of Morbidity and Interventions in General Practice, 2001 [49].

Dataset 3. Feelings of safety

Random population sample. N = 90.000

•feelings of safety • perceived neighborhood problems

•having been victim of crime

•socio-economic and demographic characteristics, incl. ethnicity

4-digit postcode

Politiemonitor Bevolking 2003 [40]

Dataset 4. Green space

The Netherlands, 25*25 meter grid cells

land use data (type of green, water surface, built-up area).

x- and y- coordinates grid cells

LGN4 data