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Table 1 Whistler cohort characteristics [n (%) of nonmissing observations], total population and stratified by sex

From: Relations between air pollution and vascular development in 5-year old children: a cross-sectional study in the Netherlands

Characteristic n (%) or mean (SD)
Child characteristic Total Girls Boys Not available
 Sex 733 376 (51.3) 357 (48.7) 0
 Age (years) 5.42 (0.4) 5.41 (0.4) 5.42 (0.3) 0
 Height (cm) 115.0 (4.8) 114.58 (4.8) 115.45 (4.7) 117
 BMI 15.2 (1.4) 15.06 (1.4) 15.36 (1.4) 117
 SBP (mmHg) 105.00 (7.5) 105.03 (7.5) 104.98 (7.5) 11
 DBP (mmHg) 54.4 (7.2) 54.29 (7.4) 54.43 (7.1) 11
 cIMT (μm) 385.6 (39.5) 381.8 (37.5) 389.3 (40.9) 73
 EM (kPa) 159.3 (49.0) 156.2 (46.0) 162.6 (52.0) 187
 cD (MPa−1) 81.0 (13.0) 80.1 (13.0) 81.97 (13.0) 157
Parental Characteristic
 Parental higher SES     178
  None 132 (23.7) 64 (21.8) 68 (26.0)  
  One parent 157 (28.3) 86 (29.4) 71 (27.1)  
  Both parents 268 (48.0) 143 (48.8) 123 (46.9)  
 Exposed to smoke during pregnancy 51 (7.0) 26 (7.0) 25 (7.1) 12
 Exposed to smoke later in life 44 (6.1) 25 (6.8) 19 (5.4) 18
Exposures
 NO2 (μg/m3) 29.47 (2.1) 29.47 (2.1) 29.47 (2.1) 0
 NOx (μg/m3) 35.34 (6.2) 35.20 (6.1) 35.50 (6.3) 0
 PM2.5 (μg/m3) 16.71 (0.2) 16.71 (0.2) 16.72 (0.2) 0
 PM10 (μg/m3) 25.03 (0.6) 25.03 (0.6) 25.04 (0.6) 0
 PM2.5 absorbance (10−5/m) 1.32 (0.1) 1.32 (0.1) 1.32 (0.1) 0