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Table 3 Background data of participating patients (n = 498)

From: The effect of watchful waiting compared to immediate test ordering instructions on general practitioners' blood test ordering behaviour for patients with unexplained complaints; a randomized clinical trial (ISRCTN55755886)

Variables

Categories

Results

overall

(n = 498)

Randomization#

   

Immediate

(n = 229)

Watchful waiting

(n = 95)

Watchful waiting + strategy

(n = 174)

Mean age in years (SD)

 

43 (16.2)

42 (15.5)

45 (15.2)

45 (17.5)

Gender (%)

Male

140 (28)

67 (29)

18 (19)

55 (32)

Type of health insurance: private versus state (%)

Private

164 (33)

80 (35)

37 (39)

47 (27)

Highest level of education (%)

None completed

Primary

Secondary

Higher

4 (1)

46 (10)

323 (67)

106 (22)

2 (1)

20 (9)

146 (64)

55 (24)

1 (0)

5 (1)

65 (68)

21 22)

1 (0)

21 (12)

112 (64)

30 (17)

  1. #Differences between groups were statistically tested with X 2 tests or t-test when appropriate. No statistically significant differences (p > 0.05) were found between the randomization groups