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. 2018 Sep 10;8(9):e021311. doi: 10.1136/bmjopen-2017-021311

Table 5.

Measurements performed in the child and pregnancy panel studies

Measurement No. of subjects in child panel study* No. of subjects in pregnancy panel study* Description Measurement point/period
Geolocation and mobility 146 126 Smartphone GPS with ExpoApp application installed 7 days in each study period
Physical activity 145 148 Smartphone and Actigraph accelerometer 7 days in each study period
NO2 154 158 Passive samplers for NO2 installed in the home 7 days in each study period
BTEX 154 158 Passive samplers for BTEX installed in the home 7 days in each study period
PM2.5 92 90 Active PM2.5 Cyclone pumps (BGI-400–4), carried by participants in backpack and installed in the home Last 24 hours of each of the two study periods
Black carbon 89 66 MicroAthelometer (AE51) for continuous monitoring Last 24 hours of each of the two study periods
UV 69 141 Electronic wrist band UV dosimeters47 7 days in each study period
Phthalates, phenols, organophosphate pesticides 152 Pool of bedtime and first morning urine 4 separate days in one study period
Phthalates, phenols, organophosphate pesticides, cotinine 152 154 Pool of daily urine samples (2 or 3 per day) during 1 week One pool in each of the two study periods
Phthalates 44 All morning and bed time urines during 1 week 7 days in one study period
1H NMR metabolomics 22 All morning and bed time urines during 1 week 7 days in one study period
Lung function 62 Spirometry Last day of period 1 and 2
Blood pressure 157 154 OMRON 705-CPII automated oscillometric device Last day of period 1 and 2
Height and weight 157 145 Last day of period 1 and 2

*With data in both periods.

BTEX, benzene, toluene, ethylene and meta-xylene, para-xylene and ortho-xylene; 1H NMR, proton nuclear magnetic resonance; NO2, nitrogen dioxide; PM 2.5, mass concentration of particles <2.5  µm in aerodynamical diameter; UV, ultraviolet.