Table 2 Summary statistics of baseline personal exposure factors derived from the LTDS and the LHEM, aggregated by age and residential postcode sector and assigned to London-dwelling ELSA participants; separated by age group.

From: Personalised estimation of exposure to ambient air pollution and application in a longitudinal cohort analysis of cognitive function in London-dwelling older adults

 

Min.

1st Qu.

Median

Mean ± SD

3rd Qu.

Max.

Age group 50–64 (n = 432)

 NO2

0.258

0.365

0.384

0.382 ± 0.037

0.400

0.533

 PM10

0.247

0.300

0.326

0.335 ± 0.051

0.357

0.515

 PM2.5

0.511

0.611

0.622

0.625 ± 0.036

0.639

0.748

Age Group 65+ (n = 336)

 NO2

0.242

0.344

0.359

0.359 ± 0.029

0.378

0.509

 PM10

0.233

0.279

0.303

0.309 ± 0.040

0.328

0.447

 PM2.5

0.512

0.598

0.607

0.608 ± 0.026

0.618

0.712

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