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Table 1 Baseline characteristics of the study sample

From: Fear of movement and emotional distress as prognostic factors for disability in patients with shoulder pain: a prospective cohort study

Characteristics

Completed all follow-ups (n = 101)

Did not complete 3-months follow-up (n = 15)

Did not complete 1-year follow-up (n = 22)

 Age (yr), median (IQR)

48.5 (16)

42 (14)

42 (19)

 Sex, women n (%)

75 (74.3)

11 (73.3)

13 (59.1)

 BMI, median (IQR)

22.2 (5.1)

21.3 (3.0)

22.0 (5.4)

Shoulder diagnosis n (%)

 Subacromial pain

67 (66.3)

10 (66.7)

13 (59.1)

 Adhesive capsulitis

12 (11.9)

1 (6.7)

4 (18.2)

 Myalgia

3 (3)

2 (13.3)

1 (4.5)

 Other specific shoulder conditions

12 (12.9)

1 (6.7)

3 (13.6)

 Other unspecified shoulder conditions

6 (6)

1 (6.7)

1 (4.5)

Duration of symptoms, n (%)

  < 1 month

-

-

-

 1–3 months

-

-

-

 4–12 months

30 (30)

3 (20)

6 (30)

  < 12 months

70 (70)

12 (80)

14 (70)

Educational level, n (%)

 Elementary school

14 (14.1)

-

2 (9.5)

 High school

40 (40.4)

7 (46.7)

9 (42.9)

 Higher education < 4 years

30 (30.3)

4 (26.7)

4 (19)

 Higher education ≥ 4 year

15 (15.2)

4 (26.7)

6 (28.6)

 Pain intensity, median (IQR) (0–10)

5 (3)

6 (3)

5.5 (2.3)

 Emotional distressa, median (IQR) (1–4)

1.4 (0.6)

1.3 (0.6)

1.4 (0.9)

 Fear of movementb, median (IQR) (0–10)

5 (6)

3 (5)

3.5 (5.5)

 Disabilityc, median (IQR) (0–100)

38.6 (25)

34.1 (17.7)

35.2 (23.9)

  1. aMeasured by Hopkins Symptom Checklist-25: range 1 (not at all) to 4 (very much)
  2. bMeasured using one question: “How much ‘fear’ do you have that these complaints would be increased by physical activity?” (scores range from 0 = no fear, to 10 = very much fear)
  3. cMeasured using QuickDASH: range 0 (no disability) to 100 (maximum disability)
  4. Missing data: No missing data on sex, diagnosis, emotional distress, and disability. Missing data was limited to 1.5% for age, 1% for duration of symptoms, 4% for pain intensity and fear of movement