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. 2020 Jul 21;10(7):e034747. doi: 10.1136/bmjopen-2019-034747

Table 1.

Characteristics of study participants

Characteristics Intervention group
n=98
Survey response
n=83*
Interview 6 months
n=13
Interview 12 months
n=9
Ethnicity
 White 49 (50%) 43 (52%) 10 (77%) 6 (67%)
 Black 35 (36%) 27 (33%) 3 (23%) 3 (33%)
 Asian 8 (8%) 8 (10%) 0 (0%) 0 (0%)
 Other 6 (6%) 3 (4%) 0 (0%) 0 (0%)
 Unknown 0 (0%) 2 (2%) 0 (0%) 0 (0%)
Age
 20–24 7 (7%) 4 (5%) 1 (8%) 0 (0%)
 25–29 19 (19%) 17 (20%) 3 (23%) 1 (11%)
 30–34 33 (34%) 26 (31%) 4 (31%) 3 (33%)
 35–39 33 (34%) 30 (36%) 4 (31%) 4 (44%)
 40–44 6 (6%) 6 (7%) 1 (8%) 1 (11%)
BMI at booking
 <25 with EGWG 3 (3%) 3 (4%) 0 (0%) 1 (11%)
 25–29.9 55 (56%) 51 (61%) 9 (69%) 6 (67%)
 ≥30 40 (41%) 29 (35%) 4 (31%) 2 (22%)
Parity
 Primigravida 50 (51%) 43 (52%) 9 (69%) 5 (56%)
 Multigravida 46 (47%) 38 (46%) 3 (23%) 4 (44%)
 Unknown 2 (2%) 2 (2%) 1 (8%) 0 (0%)
Number of sessions attended (data from SW)
 10+ 19 (19%) 19 (23%) 6 (46%) 4 (44%)
 6–9 8 (8%) 8 (10%) 3 (23%) 1 (11%)
 1–5 19 (19%) 15 (18%) 3 (23%) 3 (33%)
 None 52 (53%) 41 (49%) 1 (8%) 1 (11%)

*Includes those who responded either to 6-month questionnaire only or to both 6-month and 12-month questionnaires.

BMI, body mass index; EGWG, excessive gestational weight gain.; SW, Slimming World.