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Table 3 Unadjusted odds ratio of recording more than median time ACTIVE at T0, T1 and T2 as proportion of accelerometer wear time, by baseline characteristics

From: Change in level of physical activity during pregnancy in obese women: findings from the UPBEAT pilot trial

  T0 T1 T2
  OR 95% CI OR 95% CI OR 95% CI
Intervention status       
Intervention Ref   Ref   Ref  
Control 0.89 0.46, 1.73 0.81 0.33, 1.99 0.86 0.30, 2.51
Body Mass Index (Kg/m2)       
30-34.9 Ref   Ref   Ref  
35+ 1.81 0.89, 3.66 0.85 0.34, 2.14 1.25 0.42, 3.70
Age (years)       
<35 Ref   Ref   Ref  
≥35 0.78 0.37, 1.67 1.40 0.52, 3.77 0.53 0.17, 1.62
Parity       
Nulliparous Ref   Ref   Ref  
Parous 2.73 1.36, 5.48 1.04 0.40, 2.70 1.19 0. 38, 3.75
Smoking status       
Current or ex-smoker 1.46 0.71, 2.98 1.20 0.47, 3.01 0.53 0.17, 1.62
Never smoked Ref   Ref   Ref  
Ethnicity       
White Ref   Ref   Ref  
Black, Asian or other 1.09 0.54, 2.19 3.96 1.44, 10.89 0.53 0.17, 1.62
Marital status       
Married/cohabiting Ref   Ref   Ref  
Single/divorced/separate 0.72 0.37, 1.42 1.17 0.47, 2.90 1.00 0.34, 2.91
Educational achievement       
Degree or higher Ref   Ref   Ref  
No degree 4.03 1.96, 8.28 1.80 0.72, 4.51 1.82 0.62, 5.35
Employment status       
Paid or self employment Ref   Ref   Ref  
Not in paid employment 1.46 0.70, 3.04 1.76 0.67, 4.67 2.20 0.63, 7.74
Living accommodation       
Owned or private rented Ref   Ref   Ref  
Rented (council) 1.00 0.51, 1.95 1.00 0.39, 2.54 0.72 0.23, 2.23
IMD quintile       
1-4 Ref   Ref   Ref  
5 (most deprived) 1.53 0.73, 3.20 1.23 0.45, 3.32 1.05 0.32, 3.48
Baseline ACTIVE       
Below median -   Ref   Ref  
Above median -   5.85 2.16, 15.86 5.95 1.80, 19.70
28 week ACTIVE       
Below median -   -   Ref  
Above median -   -   4.61 1.39, 15.24
  1. Statistically significant relationships (p < 0.05) are in bold.
  2. ‘ACTIVE’ defined as ≥100 cpm; Median %ACTIVE at T0 = 26.8%; at T1 = 24.7%; at T2 = 26.3%.
  3. T0 = 16+0 – 18+6 weeks’ gestation; T1 = 27+0 – 28+6 weeks’ gestation; T2 = 35+0 – 36+6 weeks’ gestation.