ALSPAC: response
The table below provides the response to each dietary assessment as outlined in a previous publication [94].
The overall cohort consisted of, mothers and partners (n = 14 541 pregnancies), children (n = 14,062 live births, 13, 988 alive at 1 year; clinic visits for whole cohort n = 13, 602 available at 7 years).
The 10% CiF subsample included n = 1,432 attending at least once.
Responses to dietary measures in ALSPAC
| Response (n(%)) ‡ | |||||
|---|---|---|---|---|---|
| Mother’s FFQ | Partner’s FFQ | Child’s FFQ | Child’s diet diary | Derived vars & Other DATs/Qs** | |
| 32 weeks gestation (1991/1992) | 12,104 (97%) | 9,960 (68%) | (M) 12,030 (83%) | ||
| 4 weeks (1991/1992) | 12,353 (88%) | 12,353 (88%) | |||
| 4 months (1992/1993) | 964 (67%)* | 964 (67%)* | |||
| 6 months (1991/1993) | 11,490 (82%) | 11,490 (82%) | |||
| 8 months (1992/1993) | 1,178 (82%)* | 1,178 (82%)* | |||
| 15 months (1992/1994) | 11,073 (79%) | 11,073 (79%) | |||
| 18 months (1994) | 1026 (72%)* | 1026 (72%)* | |||
| 2 years (1994/1995) | 10,431 (75%) | 10,431 (75%) | |||
| 3 years (1995/1996) | 10,150 (73%) | 10,150 (73%) | |||
| 3.5 years (1996) | 863 (60%)* | 863 (60%)* | |||
| 4 years (1996/1997) | 9,501 (65%) | 5,084 (35%) | 9,722 (70%) | (M) 9,426 (65%) (P) 5,076 (35%) (pCM) 9,722 (70%) |
|
| 5 years (1997) | 771 (54)* | v | |||
| 6/7 years (1997/99) | 8,412 (60%) | 8,515 (61%) | |||
| 7 years (1998/2000) | 7,282 (49%) | 7,282 (49%) | |||
| 8/9 years (2000/02) | 7,811 (54%) | 3,975 (27%) | 8,212 (55%) | (M) 7,886 (54%) (P) 4,002 (28%) (pCM) 8,231 (55%) |
|
| 10 years (2002/2003) | 7,468 (50%) | 7,468 (50%) | |||
| 12/13 years (2004/2006) | 6,963 (48%) | 3,253 (22%) | (pCM) 7,079 (48%) (CM) 7,072(47%) |
(M) 6,943 (48%) (P) 3,251 (22%) (pCM) 7,091 (48%) (CM) 7,058 (47%) |
|
| 14 years (2004-2006) | (CM) 6,133 (41%) | ||||
| 16 years (2007-2009) | (CM) 5,060 (34%) | ||||
| 17 years (2010) | (M) 5,650 (39%) | ||||
| 18 years (2010-2011) | (CM) 3,356 (23%) | ||||
| 23 years (2015-2016) | (CM) 4,120 (28%) | ||||
| 24 years (2016-2017) | (CM) 4,311 (29%) | ||||
| 25 years (2017-2018) | (CM) 4,076 (27%) | ||||
| 27 years (2020) COVID1 | (CM) 2,913 (20%) (M) 2,707 (19%) (P) 978 (7%) (CMP) 109 (38%) |
||||
| 27 years (2020) COVID2 | (CM) 2,641 (18%) (M) 2,687 (18%) (P) 1,037 (7%) (CMP) 84 (29%) |
||||
| 27/28 years (2020-2021) COVID4 | (CM) 4,325 (29%) (M) 3,171 (22%) (P) 1,160 (8%) |
||||
| 28 years (2020-2021) | (CM) 4,325 (29%) | ||||
| 29 years (2021-2022) | (CM) 4,258 (29%) | ||||
| 29 years (2022) COVID6 | (CM) 1,701 (11%) (M) 1,896 (13%) (P) 681 (11%) |
||||
| 30 years (2022-2023) | 4,866 (33%) | 2,079 (14%) | 3,964 (27%) | (CM) 3,964 (27%) (M) 3,893 (27%) (P) 2,091 (14%) |
|
| 31 years (2023) | NA† | ||||
| 32 years (2023) | NA† | ||||
Notes.
(CM) = cohort member; (pCM) = parent/carer reporting about cohort member; (M) = mother; (P) = partner; (CMP) = cohort member’s partner
‡ Percentage of respondents to the diet questions from the total sample. Denominators are: mothers and partners = 14,541; cohort members, up to age 7 = 13,988 (original cohort members who were alive at 1 year of age); cohort members, age 7 and older = 14,901 (original cohort members who were alive at 1 year of age + cohort members from the enrichment sample who were alive at 1 year of age); partners of cohort members = 285 (recruited as part of children of the Children of the 90s and eligible to take part in the COVID surveys [104]). More information about the ALSPAC sample is available at https://www.bristol.ac.uk/alspac/researchers/cohort-profile/
* CIF (Children in Focus) = 10% subsample (N=1,432).
** Valid responses to at least one diet-related question.
† Response frequencies not available at time of writing.