Table 3 Odds ratio (95%CI) of predictive factors of adherence to home exercise components of frequency per week and duration per session.

CHARACTERISTICS OF PATIENT

Gender Female

0.5 (0.2-1.2)

0.6 (0.2-1.6)

Age

   18-39

1.0

1.0

   40-59

0.8 (0.4-1.6)

0.7 (0.3-1.6)

   >59

1.1 (0.5-2.5)

0.6 (0.2-1.5)

Education level

   Without studies

1.0

1.0

   Primary/Secondary/university

0.9 (0.4-2.1)

0.3 (0.1-1.2)

Work participation

0.9 (0.5-1.7)

0.8 (0.4-1.6)

Sick leave

0.8 (0.4-1.8)

0.7 (0.3-1.9)

Use of physiotherapist in previous episodes of pain

2.0 (1.1-3.7)*

0.9 (0.4-1.8)

Participation in home program in previous episodes

   No participation

1.0

1.0

-

   Participation and low adherence

0.8 (0.4-1.5)

0.5 (0.2-0.9)*

0.3 (0.1-0.9)*

   Participation and adherence

2.9 (1.1-7.9)*

1.1 (0.4-3.2)

0.5 (0.1-2.2)

CHARACTERISTICS OF PAIN

Low back pain

0.9 (0.4-1.7)

1.3 (0.6-2.9)

Pain intensity

1.0 (0.8-1.2)

0.9 (0.7-1.1)

High level of disability

1.2 (0.6-2.2)

1.0 (0.5-2.1)

CHARACTERISTICS OF HOME EXERCISE PROGRAM

Strength exercises

0.9 (0.5-1.7)

1.1 (0.5-2.3)

Stretching exercises

1.4 (0.6-3.5)

1.6 (0.6-4.4)

Total number of exercises

   1-3

1.0

1.0

   4-6

0.7 (0.3-1.4)

0.6 (0.2-1.8)

0.8 (0.4-1.9)

   >6

0.3 (0.1-0.7)*

0.2 (0.1-0.9)*

0.6 (0.2-1.8)

Days per week

   1-3

1.0

1.0

   4-6

1.5 (0.7-3.6)

2.2 (0.8-6.2)

   >6

2.0 (0.9-4.5)

1.2 (0.5-2.8)

Duration/session

   <10 minutes

1.0

1.0

   > 10-15 minutes

0.4 (0.2-1.1)

0.6 (0.2-1.9)

ENVIRONMENT and SELF-EFFICACY

Have enough time

2.8 (1.5-5.2)*

1.4 (0.7-2.8)

Exercises fit daily routine

7.4 (4.4-26)*

12.6 (0.8-19)

4.5 (1.4-14)*

Positive emotional support

3.5 (1.5-8.1)*

2.8 (1.1-7.4)*

Self-efficacy

1.7 (1.4-2.1)*

1.5 (1.1-2.0)*

1.4 (1.2-1.7)*

1.4 (1.1-1.8)*

PHYSIOTHERAPISTS' BEHAVIOURS IN CLINICAL ENCOUNTERS

General information

Clarifying doubts and questions from patients

2.5 (1.3-4.7)*

4.1 (1.4-12)*

1.6 (0.8-3.4)

Giving information about illness

0.9 (0.5-1.7)

0.9 (0.4-1.7)

Justifying usefulness of advises

1.1 (0.5-1.7)

0.7 (0.3-1.8)

Instructions and follow-up of exercises

Giving written instructions

0.8 (0.4-1.4)

1.1 (0.6-2.4)

Supervising exercises in health care centre

1.6 (0.8-3.0)

2.7 (1.3-5.8)*

3.3 (1.3-8.6)*

Asking about adherence at home

1.5 (0.8-2.8)

1.4 (0.7-2.9)

Patient's assessment

Satisfaction

1.2 (1.1-1.4)*

1.1 (0.9-1.4)

ADHERENCE

Good adherence to frequency per week

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8.0 (3.7-17)*

4.1 (1.6-10)*

Good adherence to duration per session

8.0 (3.7-17)*

4.7 (1.6-14)*

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