Year 2011-2015 2011-2015
Wave Whole cohort Clinical sub-sample
Age 10-14 years 10-14 years
Asthma/wheezing P:HN
P:ISAAC
P:SDV
P:SDV
Hay fever P:HN
P:ISAAC
P:SDV
Respiratory function test O
S – self report
P – parent report
C – child report
T – teacher report
N – welfare nurse
O – observation
XM: Mother
XF/P: Father/partner
XC: Child
XS: Sibling
XG: Grandparent

SDV: Study Devised Variable
HN: HealthNuts Study derived
ISAAC: International Study of Asthma and Allergy in Children adaptation