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Table 1 Participant characteristics

From: The effect of a lifestyle intervention in obese pregnant women on gestational metabolic profiles: findings from the UK Pregnancies Better Eating and Activity Trial (UPBEAT) randomised controlled trial

 

Participants with at least one metabolic profile analysed (analysis sample)

n = 1158a

All eligible participants in the six contributing centres

n = 1194a

Control

n = 577

Intervention

n = 581

Control

n = 593

Intervention

n = 601

BMI, n (%)

 30–34.9 kg/m2

273 (47.3)

287 (49.4)

279 (47)

296 (49.3)

 35–39.9 kg/m2

203 (35.2)

177 (30.5)

209 (35.2)

185 (30.8)

 ≥ 40 kg/m2

101 (17.5)

117 (20.1)

105 (17.7)

120 (20)

Ethnicity, n (%)

 White

389 (67.4)

384 (66.1)

396 (66.8)

397 (66.1)

 Asian

38 (6.6)

43 (7.4)

43 (7.3)

45 (7.5)

 Black

120 (20.8)

127 (21.9)

123 (20.7)

130 (21.6)

 Other

30 (5.2)

27 (4.6)

31 (5.2)

29 (4.8)

Parity, n (%)

 Primiparous

260 (45.1)

257 (44.2)

266 (44.9)

265 (44.1)

 Multiparous

317 (54.9)

324 (55.8)

327 (55.1)

336 (55.9)

Age, n (%)

 < 25 years

97 (16.8)

85 (14.6)

100 (16.9)

90 (15)

 25–29 years

141 (24.4)

165 (28.4)

147 (24.8)

169 (28.1)

 30–34 years

187 (32.4)

174 (29.9)

188 (31.7)

182 (30.3)

 ≥ 35 years

152 (26.3)

157 (27)

158 (26.6)

160 (26.6)

Gestational diabetes, n (%)

 Yes

146 (25.3)

137 (23.6)

148 (25.0)

137 (22.8)

 No

366 (63.4)

344 (59.2)

370 (62.4)

351 (58.4)

 Missing

65 (11.3)

100 (17.2)

75 (12.6)

113 (18.8)

Centre, n (%)

 Bradford

19 (3.3)

22 (3.8)

25 (4.2)

28 (4.7)

 Glasgow

130 (22.5)

132 (22.7)

131 (22.1)

134 (22.3)

 Manchester

67 (11.6)

67 (11.5)

70 (11.8)

69 (11.5)

 Newcastle

120 (20.8)

116 (20)

122 (20.6)

120 (20)

 St George’s, London

53 (9.2)

55 (9.5)

54 (9.1)

57 (9.5)

 St Thomas’s, London

188 (32.6)

189 (32.5)

191 (32.2)

193 (32.1)

First clinic visit

n (%)

538 (93.2)

545 (93.8)

593 (100.0)

601 (100.0)

 Median (IQR) gestation, weeks

17.0 (16.1–17.9)

17.0 (16.1–18.0)

17.0 (16.1–17.9)

17.0 (16.1–18.0)

Second clinic visit

n (%)

500 (86.7)

477 (82.1)

591 (99.7)

598 (99.5)

 Median (IQR) gestation, weeks

27.7 (27.3–28.1)

27.7 (27.3–28.1)

27.7 (27.3–28.3)

27.7 (27.3–28.1)

Third clinic visit

n (%)

407 (70.5)

374 (64.4)

524 (88.4)

485 (80.7)

 Median (IQR) gestation, weeks

34.7 (34.3–35.1)

34.6 (34.3–35.1)

34.7 (34.3–35.3)

34.7 (34.3–35.3)

  1. aThe 1158 participants whose results are in the first two columns are a subgroup of the 1194 whose results are presented in the last two columns. n number, IQR interquartile range