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Table 3 Effects of intervention for primary outcomes (with 95% confidence intervals)

From: Integrating Mobile-health, health coaching, and physical activity to reduce the burden of chronic low back pain trial (IMPACT): a pilot randomised controlled trial

Primary outcomes

Group Effect

Group Effect Over Time*

n

Obs

IRR/Coef.β

95% CI

p

IRR/Coef. β

95% CI

p

Care-seekinga

57

616

0.62

0.32–1.18

0.147

0.97

0.93–1.01

0.144

Activity limitationb

57

622

1.04

0.59–1.83

0.868

0.99

0.96–1.02

0.660

Pain levelsc

57

605

0.24

−0.76–1.25

0.635

−0.01

−0.04–0.01

0.303

  1. *Multilevel mixed-effects and interaction with time variable for the outcomes collected weekly
  2. βIncidence-Rate Ratio (IRR) refer to care-seeking and activity limitation. Pain is presented as coefficient (Coef)
  3. aCare-seeking due to LBP in the last week (yes or no)
  4. bActivity limitation due to LBP in the last week (yes or no)
  5. cLow Back Pain level in the last week measured with the numerical rating scale (0-10); Coef.: coefficient; IRR: Incidence Risk Ratio; CI: Confidence Interval
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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