Table 2

Mean differences for outcomes in control and intervention groups.

Primary outcomenWeek 1, mean (SD)nWeek 8, mean (SD)Mean difference (SD)P-value
Step count
  Control group415138 (3873)354859 (3474)−386 (3281)0.025a
  Intervention group374365 (2732)315855 (4264)1631 (3842)
Secondary outcomesnBaseline, mean (SD)nFollow-up, mean (SD)Mean difference (SD)P-value
Systolic blood pressure, mmHg
  Control group45124.3 (13.6)40128.7 (14.7)3.8 (12.4)0.117
  Intervention group45121.8 (16.1)37120.6 (17.2)−0.6 (11.8)
Diastolic blood pressure, mmHg
  Control group4581.3 (7.3)4082.4 (9.5)0.90 (8.0)0.376
  Intervention group4581.4 (9.1)3780.0 (10.3)−0.88 (9.5)
Resting heart rat, beats per minute
  Control group4571.4 (8.4)3868.1 (6.5)−3.0 (8.0)0.213
  Intervention group4573.8 (9.9)3672.1 (10.1)−0.4 (10.0)
Weight, kg
  Control group4586.7 (18.7)3985.2(18.7)−0.16 (2.3)0.738
  Intervention group4578.6 (22.1)3776.4(21.6)−0.33 (1.9)
BMI
  Control group4528.9 (4.9)3928.7 (4.8)−0.06 (0.8)0.738
  Intervention group4527.5 (6.1)3726.7 (5.6)−0.12 (0.7)
HADS
  Control group444.0 (3.2)392.3 (2.2)−1.7 (2.9)0.917
  Intervention group453.5 (2.5)372.0 (1.9)−1.6 (2.3)
EQ-VAS
  Control group4373.2 (18.4)3881.8 (11.7)7.9 (12.1)0.791
  Intervention group4274.1 (16.3)3779.6 (17.7)7.0 (14.9)
EQ-5D
  Control group450.83 (0.10)370.88 (0.07)0.04 (0.10)0.148
  Intervention group450.87 (0.07)360.88 (0.07)0.01 (0.05)
  • a The adjusted P-value for week 1 to week 8 inclusive was P = 0.009. BMI = body mass index. EQ-VAS = EuroQol visual analogue scale quality-of-life scoring tool. HADS = Hospital Anxiety and Depression Scale. SD = standard deviation.