BIS: Biosamples

Year 2010-13 2010-13 2010-13 2010-14 2011-14 2011-14 2011-14 2011-14 2012-14 2012-15 2014-16
Wave 1 2 3 4 5 6 7 8 9 10 11
Age 1st and 2nd trimester 3rd trimester Birth/perinatal 4 weeks 3 months 6 months 9 months 12 months 18 months 2 years Preschool
4 years +/- 6 months
Venous blood Mother: 1085 Child: 818 Child: 768 Child: 202
(collection in progress)
Cord blood Child: 978
Cord Sample: 1020
Placenta Sample: 1032
Meconium Child: 1000
Faeces Mother: 944   Child: 939 Child: 880 Child: 707 Child: 589 Child: 209
(collection in progress)
Saliva     Mother: 157
Child: 158
(subset only)		 Child: 169
(subset only)
Buccal     Child: 298
(collection in progress)
Nasal swab Child: 269 Child: 289 Child: 381 Child: 544 Child: 293
(collection in progress)
Urine Mother: 942 Child: 905 Child: 287
(optional home visit subset)		 Child: 658 Child: 495 Child: 268
(collection in progress)
Hair Mother: 972
Child: 981		 Child: 365 Child: 646
Breast milk Sample: 297 Sample: 34 Sample: 34

Legend

A = Administration report abstraction
C = Index child report (reporting on others)
L = Linkage (to other databases)
M = Medical records data abstraction
O = Observation/direct assessment
N = Nurse report
P = Parent/primary caregiver report
Pe = Peer report
S = Self report
T = Teacher report
X = Undefined
X BF = Pertaining to biological father
X BM = Pertaining to biological mother
X C = Pertaining to index child
X F = Pertaining to father
X Fam = Pertaining to family
X G = Pertaining to grandparent(s)
X M = Pertaining to mother
X P = Pertaining to parent(s)
X Pa = Pertaining to partner
X Pe = Pertaining to peers
X Pr = Pertaining to primary caregiver
X Si = Pertaining to sibling(s)