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Table 1 Baseline demographic and clinical characteristics of participants by treatment group, reported as mean (standard deviation) unless otherwise specified

From: Prolotherapy injections and physiotherapy used singly and in combination for lateral epicondylalgia: a single-blinded randomised clinical trial

Characteristics

Prolotherapy

Combined

Physiotherapy

Total

n = 40

n = 40

n = 40

N = 120

Age, years

49.2 (7.2)

47.8 (7.0)

51.0 (9.0)

49.3 (7.8)

Women, N (%)

18 (45%)

18 (45%)

16 (40%)

52 (43%)

Duration, weeks median, (IQR)

23.0 (22.0)

19.5 (18.0)

21.0 (43.0)

22.0 (27.0)

Employment

 Manual work

17 (42.5%)

20 (50%)

24 (60%)

61 (50.8%)

 Non-manual work

19 (47.5%)

13 (32.5%)

11 (27.5%)

43 (35.8%)

 Not working

4 (10%)

7 (17.5%)

5 (12.5%)

16 (13.3%)

Previous episode of LE, N (%)

 

12 (30%)

13 (33.3%)

15 (37.5%)

40 (33.6%)

Progress trajectory before study, N (%)

 Better

13 (33.3%)

12 (30.0%)

11 (28.9%)

36 (30.8%)

 Worse

13 (33.3%)

17 (42.5%)

12 (31.6%)

42 (35.9%)

 Same

13 (33.3%)

11 (27.5%)

15 (39.5%)

39 (33.3%)

Affected side, N (%)

 Right

28 (70%)

19 (47.5%)

24 (60%)

71 (59.2%)

 Left

6 (15%)

18 (45.0%)

6 (15%)

30 (25.0%)

 Bilateral

6 (15%)

3 (7.5%)

10 (25%)

19 (15.8%)

Dominant side affected, Proportion (%)

 Dominance = Right

32/36 (88.9%)

22/38 (57.9%)

32/36 (88.9%)

86/110 (78.2%)

 Dominance = Left

3/4 (75.0%)

2/2 (100.0%)

3/4 (75.0%)

8/10 (80.0%)

PRTEE, /100

31.6 (10.3)

31.3 (10.8)

33.5 (10.0)

32.1 (10.3)

Pain at rest, /10

2.0 (1.6)

1.8 (1.6)

2.1 (2.0)

1.9 (1.7)

Worst pain, /10

7.4 (1.6)

6.1 (2.4)

7.3 (2.0)

6.9 (2.1)

PFG, ratio affected/unaffected

0.56 (0.34)

0.55 (0.32)

0.64 (0.55)

0.58 (0.41)

EuroQoL, /100

82.6 (12.9)

83.1 (11.2)

80.4 (16.9)

82.1 (13.7)

  1. PRTEE = Patient-Rated Tennis Elbow Evaluation; LE = lateral epicondylalgia; PFG = pain-free grip; PPT = pressure pain threshold. Between-group comparisons based on chi-square tests for categorical variables and ANOVA for continuous variables (Mantel-Haenszel test for homogeneity of odds ratios for dominant side affected)