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Table 1 Patient characteristics

From: Effect of tadalafil on blood flow, pain, and function in chronic cold Complex Regional Pain Syndrome: a randomized controlled trial

 

tadalafil

placebo

P-value

n

12

12

 

Age, years

39.8 ± 13.1

36.5 ± 10.6

0.56 1

Gender (female/male)

9/3

11/1

0.29 2

Duration of CRPS, months

37.1 ± 24.5

55.7 ± 52.3

0.60 1

Smoking (yes/ex-smoker/no)

6/1/5

4/2/6

0.66 3

Temperature of CRPS foot, °C

26.8 ± 2.8

28.3 ± 4.7

0.60 1

Temperature of contra lateral foot, °C

28.5 ± 2.8

29.9 ± 3.3

0.27 1

Difference in temperature, °C

1.7 ± 0.77

1.7 ± 2.6

0.411

  1. 1 Mann Whitney U test; 2 Fisher's Exact test; 3 χ2
  2. test Values are the mean ± SD unless otherwise indicated