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Clarke JL, Ingram J, Johnson D, et al. An assets-based intervention before and after birth to improve breastfeeding initiation and continuation: the ABA feasibility RCT. Southampton (UK): NIHR Journals Library; 2020 Apr. (Public Health Research, No. 8.7.)

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An assets-based intervention before and after birth to improve breastfeeding initiation and continuation: the ABA feasibility RCT.

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Appendix 11Participant demographic and delivery characteristics by site

CharacteristicSite ASite BOverall
Intervention (N = 25)Usual care (N = 28)All (N = 53)Intervention (N = 25)Usual care (N = 25)All (N = 50)Intervention (N = 50)Usual care (N = 53)All (N = 103)
Age at baseline (years), mean (SD)27.9 (5.2)27.7 (5.9)27.8 (5.5)29.2 (20.5)29.3 (5.6)29.3 (5.4)28.6 (5.2)28.5 (5.8)28.5 (5.5)
Age range (years), minimum–maximum17.7–37.717.9–39.017.7–39.020.5–43.017.9–42.917.9–43.017.7–43.017.9–42.917.7–43.0
Missing, n (%)0 (0)1 (3.6)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
Ethnicity, n (%)N = 54
 White British21 (84.0)22 (81.5)43 (82.7)22 (88.0)23 (92.0)45 (90.0)43 (86.0)45 (86.5)88 (86.3)
 White other1 (4.0)3 (11.1)4 (7.7)2 (8.0)1 (4.0)3 (6.0)3 (6.0)4 (7.7)7 (6.9)
 Asian0 (0)0 (0)0 (0)0 (0)1 (4.0)1 (2.0)0 (0)1 (1.9)1 (1.0)
 Black African0 (0)1 (3.7)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
 Black Caribbean1 (4.0)0 (0)1 (1.9)0 (0)0 (0)0 (0)1 (2.0)1 (1.9)1 (1.0)
 Mixed1 (4.0)1 (3.7)2 (3.9)1 (4.0)0 (0)1 (2.0)2 (4.0)1 (1.9)3 (2.9)
 Other1 (4.0)0 (0)1 (1.9)0 (0)0 (0)0 (0)1 (2.0)0 (0)1 (1.0)
 Missing0 (0)1 (3.6)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
Employment status, n (%)N = 24N = 52N = 49N = 102
 In paid work18 (72.0)25 (92.6)43 (82.7)22 (88.0)25 (100)47 (94.0)40 (80.0)50 (96.2)90 (88.2)
 Unemployed6 (24.0)1 (3.7)7 (13.5)2 (8.0)0 (0)2 (4.0)8 (16.0)1 (1.9)9 (8.8)
 Looking after family/home0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)
 Unable to work (long-term health problem)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)
 Full-time education or training0 (0)1 (3.7)1 (1.9)1 (4.0)0 (0)1 (2.0)1 (2.0)1 (2.0)2 (2.0)
 Missing0 (0)1 (3.6)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
Highest level of qualification, n (%)N = 30
 No formal qualification1 (4.0)0 (0)1 (1.9)0 (0)0 (0)0 (0)1 (2.0)0 (0)1 (1.0)
 GCSE or equivalent6 (24.0)5 (18.5)11 (21.2)6 (24.0)5 (20.0)11 (22.0)12 (24.0)10 (19.2)22 (21.6)
 A/AS level or equivalent8 (32.0)6 (22.2)14 (26.9)12 (48.0)7 (28.0)19 (38.0)20 (40.0)13 (25.0)33 (32.4)
 Degree level or higher10 (40.0)16 (59.3)26 (50.0)7 (28.0)13 (52.0)20 (40.0)17 (34.0)29 (55.8)46 (45.1)
 Missing0 (0)1 (3.6)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
Relationship status, n (%)
 Married/registered civil partnership9 (36.0)12 (46.2)21 (41.2)13 (52.0)14 (56.0)27 (54.0)22 (44.0)26 (51.0)48 (47.5)
 Living together9 (36.0)11 (42.3)20 (39.2)9 (36.0)9 (36.0)18 (36.0)18 (36.0)20 (39.2)38 (37.6)
 Single7 (28.0)3 (11.5)10 (19.6)3 (12.0)2 (8.0)5 (10.0)10 (20.0)5 (9.8)15 (14.9)
 Widowed, divorced or separated0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)0 (0)
 Missing0 (0)2 (7.1)2 (3.8)0 (0)0 (0)0 (0)0 (0)2 (3.8)2 (1.9)
Index of Multiple Deprivation quintile, n (%)N = 27N = 52N = 52N = 102
 1 (most deprived)13 (52.0)11 (40.7)24 (46.2)1 (4.0)0 (0)1 (2.0)14 (28.0)11 (21.2)25 (24.5)
 23 (12.0)6 (22.2)9 (17.3)2 (8.0)2 (8.0)4 (8.0)5 (10.0)8 (15.4)13 (12.8)
 31 (4.0)7 (25.9)8 (15.4)8 (32.0)3 (12.0)11 (22.0)9 (18.0)10 (19.2)19 (18.6)
 47 (28.0)3 (11.1)10 (19.2)6 (24.0)11 (44.0)17 (34.0)13 (26.0)14 (26.9)27 (26.5)
 5 (least deprived)1 (4.0)0 (0)1 (1.9)8 (32.0)9 (36.0)17 (34.0)9 (18.0)9 (17.3)18 (17.7)
Maternal well-being (WEMWBS), mean (SD)54.1 (9.8)55.0 (9.2)54.6 (9.4)53.4 (6.2)53.7 (8.4)53.6 (7.3)53.7 (8.1)54.4 (8.7)54.1 (8.4)
Missing, n (%)0 (0)1 (3.6)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
Intention to feed, n (%)
 Breastmilk only10 (40.0)9 (33.3)19 (36.5)7 (28.0)9 (37.5)16 (32.7)17 (34.0)18 (35.3)35 (34.7)
 Mainly breastmilk7 (28.0)7 (25.9)14 (26.9)10 (40.0)6 (25.0)16 (32.7)17 (34.0)13 (25.5)30 (29.7)
 Half and half4 (16.0)6 (22.2)10 (19.2)6 (24.0)6 (25.0)12 (24.5)10 (20.0)12 (23.5)22 (21.8)
 Mainly formula2 (8.0)2 (7.4)4 (7.7)1 (4.0)0 (0)1 (2.0)3 (6.0)2 (3.9)5 (5.0)
 Formula milk only2 (8.0)3 (11.1)5 (9.6)1 (4.0)3 (12.5)4 (8.2)3 (6.0)6 (11.8)9 (8.9)
 Missing0 (0)1 (3.6)1 (1.9)0 (0)1 (4.0)1 (2.0)0 (0)2 (3.8)2 (1.9)
How participant was fed as a baby, n (%)
 Breastfed entirely7 (28.0)8 (29.6)15 (28.9)9 (36.0)12 (48.0)21 (42.0)16 (32.0)20 (38.5)36 (35.3)
 Formula fed entirely8 (32.0)13 (48.2)21 (40.4)5 (20.0)3 (12.0)8 (16.0)13 (26.0)16 (30.8)29 (28.4)
 Mixed feeding10 (40.0)5 (18.5)15 (28.9)7 (28.0)6 (24.0)13 (26.0)17 (34.0)11 (21.2)28 (27.5)
 Don’t know01 (3.7)1 (1.9)4 (16.0)4 (16.0)8 (16.0)4 (8.0)5 (9.6)9 (8.8)
 Missing0 (0)1 (3.6)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
Participant knows anyone who has breastfed their baby, n (%)22 (88.0)25 (92.6)47 (90.4)21 (84.0)25 (100)46 (92.0)43 (86.0)50 (96.2)93 (91.2)
Missing0 (0)1 (3.6)1 (1.9)0 (0)0 (0)0 (0)0 (0)1 (1.9)1 (1.0)
Baby’s gestational age at birth (weeks), mean (SD)39.0 (2.3)40.1 (1.2)39.6 (1.9)39.7 (1.7)39.3 (1.8)39.5 (1.8)39.4 (2.0)39.7 (1.6)39.5 (1.8)
Missing1 (2.0)1 (3.6)2 (3.8)0 (0)0 (0)0 (0)1 (2.0)1 (1.9)2 (1.9)
Premature baby, n (%)5 (20.8)0 (0)5 (9.8)2 (8.0)2 (8.0)4 (8.0)7 (14.3)2 (3.9)9 (8.9)
Missing1 (2.0)1 (3.6)2 (3.8)0 (0)0 (0)0 (0)1 (2.0)1 (1.9)2 (1.9)
Mode of delivery, n (%)
 Vaginal birth5 (26.3)10 (50.0)15 (38.5)10 (47.6)12 (50.0)22 (48.9)15 (37.5)22 (50.0)37 (44.1)
 C-section (planned)1 (5.3)1 (5.0)2 (5.1)2 (9.5)2 (8.3)4 (8.9)3 (7.5)3 (6.8)6 (7.1)
 C-section (emergency)4 (21.1)4 (20.0)8 (20.5)4 (19.1)6 (25.0)10 (22.2)8 (20.0)10 (22.7)18 (21.4)
 Forceps, ventouse, vacuum delivery9 (47.4)5 (25.0)14 (35.9)5 (23.8)4 (16.7)9 (20.0)14 (35.0)9 (20.5)23 (27.4)
 Missing6 (24.0)8 (28.6)14 (26.4)4 (16.0)1 (4.0)5 (10.0)10 (20.0)9 (17.0)19 (18.4)
Duration of mother’s hospital stay, n (%)
 < 24 hours3 (15.8)6 (30.0)9 (23.1)5 (23.8)4 (16.7)9 (20.0)8 (20.0)10 (22.7)18 (21.4)
 24–48 hours11 (57.9)6 (30.0)17 (43.6)7 (33.3)6 (25.0)13 (28.9)18 (45.0)12 (27.3)30 (35.7)
 > 48 hours5 (26.3)7 (35.0)12 (30.8)9 (42.9)14 (58.3)23 (51.1)14 (35.0)21 (47.7)35 (41.7)
 Home birth01 (5.0)1 (2.6)0 (0)0 (0)0 (0)0 (0)1 (2.3)1 (1.2)
 Missing6 (24.0)8 (28.6)14 (26.4)4 (16.0)1 (4.0)5 (10.0)10 (20.0)9 (17.0)19 (18.4)
Baby admitted to neonatal unit, n (%)4 (21.1)2 (10.0)6 (15.4)3 (14.3)2 (8.3)5 (11.1)7 (17.5)4 (9.1)11 (13.1)
Missing6 (24.0)8 (28.6)14 (26.4)4 (16.0)1 (4.0)5 (10.0)10 (20.0)9 (17.0)19 (18.4)

A/AS level, Advanced/Advanced Subsidiary level; GCSE, General Certificate of Secondary Education; SD, standard deviation.

WEMWBS98 score ranges from 14 to 70; 70 indicates highest level of mental well-being.

Copyright © Queen’s Printer and Controller of HMSO 2020. This work was produced by Clarke et al. under the terms of a commissioning contract issued by the Secretary of State for Health and Social Care. This issue may be freely reproduced for the purposes of private research and study and extracts (or indeed, the full report) may be included in professional journals provided that suitable acknowledgement is made and the reproduction is not associated with any form of advertising. Applications for commercial reproduction should be addressed to: NIHR Journals Library, National Institute for Health Research, Evaluation, Trials and Studies Coordinating Centre, Alpha House, University of Southampton Science Park, Southampton SO16 7NS, UK.
Bookshelf ID: NBK556172

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