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Table 1 Description of subjects at baseline (16 +0 -18 +6weeks gestation) by randomised treatment

From: Developing a complex intervention for diet and activity behaviour change in obese pregnant women (the UPBEAT trial); assessment of behavioural change and process evaluation in a pilot randomised controlled trial

  Control Intervention
  n = 89 n = 94
Age (years) 1 30.7 (4.9) 30.4 (5.7)
Age categories   
18-25 16 (18%) 22 (23%)
26-30 25 (28%) 27 (29%)
31-40 46 (52%) 42 (45%)
41 plus 2 (2%) 3 (3%)
Anthropometry   
Height (m) 1.64 (0.07) 1.64 (0.07)
Weight (kg) 96.8 (16.2) 97.8 (12.7)
BMI (kg/m2) 36.1 (4.8) 36.5 (4.7)
Ethnicity 1   
White 51 (57%) 52 (55%)
Black 32 (36%) 38 (40%)
Asian 1 (1%) 2 (2%)
Other 5 (6%) 2 (2%)
Parity 1   
0 38 (43%) 42 (45%)
1 36 (40%) 29 (31%)
2 or more 15 (17%) 23 (24%)
Cigarette smoking   
Never 61 (68%) 63 (67%)
Ex-smoker 22 (25%) 25 (27%)
Current 6 (7%) 6 (6%)
Number of cigarettes  
0 83 (93%) 83 (88%)
1-5 per day 3 (3%) 3 (3%)
11-20 per day 1 (1%) 6 (6%)
6-10 per day 2 (2%) 2 (2%)
Index of multiple deprivation 2  
England n = 76 n = 79
Mean (SD) 34 (12) 36 (14)
Quintiles   
1-4 (less deprived) 35 (46%) 29 (37%)
5 (most deprived) 41 (54%) 50 (63%)
Scotland n = 12 n = 14
Mean (SD) 28 (11) 30 (20)
Quintiles   
1-4 (less deprived) 7 (58%) 8 (57%)
5 (most deprived) 5 (42%) 6 (43%)
Living arrangements  
Single 35 (39%) 50 (53%)
With partner 66 (74%) 69 (73%)
With parent(s) 7 (8%) 13 (14%)
Without partner or parents 17 (19%) 17 (18%)
Accommodation   
Owned 27 (30%) 21 (22%)
Rented (private) 26 (29%) 27 (29%)
Rented (council) 36 (40%) 46 (49%)
  1. Results shown are mean (SD) or n (%).
  2. 1 The randomised treatment allocation is balanced by minimization on maternal age, centre, ethnicity, and parity.
  3. 2 The index of multiple deprivation is calculated for the region of residence (Lower super output area in England, data region in Scotland) [13, 14]. Different methods and reference populations are used in England and Scotland, and the indices are not directly comparable.