Skip to main content

Table 3 Outcomes from electronic patient record data

From: Patient education booklet to support evidence-based low back pain care in primary care – a cluster randomized controlled trial

 

Intervention group n = 178

Control group n = 186

intervention vs control

Age adjusted intervention vs control

 

%(n)

%(n)

OR (95% CI); P value

OR (95% CI); P value

Imaginga (yes/no)

    

3 months

10.8 (19)

16.7 (31)

0.57 (0.27 to 1.22); 0.147

0.60 (0.29–1.24); 0.166

12 months

17.5 (31)

29.7 (54)

0.50 (0.30 to 0.83); 0.008

0.52 (0.32 to 0.84); 0.007

Radiographsa

    

3 months

5.6 (10)

9.1 (17)

0.57 (0.25 to 1.29); 0.178

0.58 (0.25–1.33); 0.199

12 months

8.4 (15)

14.7 (27)

0.55 (0.34 to 0.88); 0.013

0.58 (0.37 to 0.90); 0.016

Magnetic resonance imaging (MRI) a

    

3 months

7.3 (13)

8.6 (16)

0.86 (0.49 to 1.52); 0.610

0.90 (0.55–1.48); 0.688

12 months

12.8 (23)

21.1 (39)

0.61 (0.44 to 0.84); 0.002

0.64 (0.49 to 0.84); 0.001

Computed tomography (CT) a

    

3 months

0 (0)

1.6 (3)

c

c

12 months

0.6 (1)

2.2 (4)

c

c

MRI + CTa

    

3 months

7.3 (13)

9.1 (17)

0.81 (0.45 to 1.46);0.475

0.86 (0.51–1.4); 0.555

12 months

13.4 (24)

21.7 (40)

0.60 (0.39 to 0.91); 0.016

0.64 (0.45 to 0.91); 0.014

 

mean(SD); sum

mean(SD); sum

RR (95% CI); P-value

RR (95% CI); P-value

Sick leave daysb

    

3 months

3.8 (11.2); 664

8.4 (20.2); 1526

0.47 (0.26 to 0.83); 0.010

0.48 (0.29 to 0.81); 0.006

12 months

7.5 (31.3); 1330

20.8 (59.2); 3717

0.36 (0.18 to 0.72); 0.004

0.39 (0.22–0.70); 0.002

Physician appointments b

    

3 months

1.1 (1.4); 156

1.2 (1.5); 188

0.92 (0.44 to 1.9); 0.813

0.92 (0.44 to 1.9); 0.822

12 months

1.6 (2.1); 231

1.8 (2.3); 283

0.87 (0.4 to 1.9); 0.725

0.87 (0.41 to 1.78); 0.678

Physiotherapist appointmentsb

    

3 months

1.2 (1.7); 212

1.3 (1.1); 235

0.88 (0.56 to 1.40); 0.601

0.89 (0.55 to 1.43); 0.618

12 months

1.7 (2.6); 297

2.0 (2.2); 359

0.83 (0.55 to 1.2); 0.356

0.83 (0.56 to 1.23); 0.829

Nurse appointmentsb

    

3 months

0.3 (1.2); 60

0.2 (0.7); 41

1.3 (0.20 to 8.42); 0.772

1.3 (0.20 to 9.69); 0.749

12 months

0.6 (1.8); 107

0.3 (1.0); 60

1.72 (0.34 to 8.66); 0.514

1.93 (0.34 to 11.04); 0.458

Secondary health care appointments (physiatrist + orthopedist)b

    

3 months

0.3 (1.0); 48

0.3 (0.7); 55

1.06 (0.68 to 1.65); 0.801

1.10 (0.73 to 1.64); 0.662

12 months

0.6 (1.6); 87

0.7 (1.8); 132

0.81 (0.49 to 1.35); 0.426

0.84 (0.53 to 1.33); 0.447

  1. aDifference between intervention and control groups analysed with logistic regression using generailzed estimating equations with exchangeable working correlation matrix
  2. bDifference between intervention and control groups analysed with Poisson regression using general estimating equations with exchangeable working correlation matrix
  3. Odds Ratio (OR), Confidence Interval (CI), Risk Ratio (RR)
  4. cOR not possible due to zero frequency