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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.