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Table 3 Baseline characteristics in the two treatment-arms

From: Minimally invasive anterior muscle-sparing versus a transgluteal approach for hemiarthroplasty in femoral neck fractures-a prospective randomised controlled trial including 190 elderly patients

 

LAT

AMIS

 

Age

 N

99

82

p = 0.767

 Mean (sd)

84.0 (6.6)

84.4 (6.7)

 Median (10%, 90%)

84.0 (75.0,92.0)

86.0 (74.0,92.0)

Gender

 Male

33/99 33.3%

19/82 23.2%

p = 0.134

 Female

66/99 66.7%

63/82 76.8%

Body Mass Index

 N

94

72

p = 0.689

 Mean (sd)

23.7 (4.9)

23.8 (4.8)

 Median (10%, 90%)

24.0 (18.0,29.0)

23.0 (18.0,29.0)

Residential status

 Own home

56/98 57.1%

37/82 45.1%

p = 0.127

 Own home supported

15/98 15.3%

12/82 14.6%

 Assisted living

4/98 4.1%

9/82 11.0%

 Nursing home

20/98 20.4%

23/82 28.0%

 Other

3/98 3.1%

1/82 1.2%

Walking aid

 Yes

45/98 45.9%

51/81 63.0%

p = 0.023

Dementia

 Yes

20/98 20.4%

26/82 31.7%

p = 0.084

MSQ

 N

92

77

p = 0.312

 Mean (sd)

7.9 (2.9)

7.5 (3.1)

 Median (10%, 90%)

9.0 (3.0,10.0)

9.0 (2.0,10.0)

pfFIM

 N

93

75

p = 0.860

 Mean (sd)

107.0 (26.6)

107.8 (24.5)

 Median (10%, 90%)

123.0 (63.0,126.0)

120.0 (67.0,126.0)

Number of medications

 N

97

82

p = 0.524

 Mean (sd)

6.9 (4.4)

6.5 (4.4)

 Median (10%, 90%)

6.0 (2.0,13.0)

6.0 (1.0,12.0)

Charlson Comorbidity Score

 N

98

79

p = 0.952

 Mean (sd)

2.3 (2.1)

2.3 (2.2)

 Median (10%, 90%)

2.0 (0.0,5.0)

2.0 (0.0,5.0)

Frailty Index

 N

92

73

p = 0.739

 Mean (sd)

0.18 (0.15)

0.17 (0.16)

 Median (10%, 90%)

0.12 (0.01,0.40)

0.13 (0.03,0.41)

ASA score

 2

33/99 33.3%

23/82 28.0%

p = 0.436

 3

62/99 62.6%

55/82 67.1%

 4

4/99 4.0%

4/82 4.9%

Time until surgery (hours)

 N

97

82

p = 0.943

 Mean (sd)

27.4 (18.9)

25.6 (14.4)

 Median (10%, 90%)

23.0 (7.0,52.0)

24.0 (7.0,44.0)

Haemoglobin

 N

98

82

p = 0.901

 Mean (sd)

129.5 (16.1)

129.9 (15.7)

 Median (10%, 90%)

132.5 (109.0,149.0)

130.0 (107.0,149.0)

Creatinine

 N

95

76

p = 0.596

 Mean (sd)

19.8 (10.1)

19.5 (11.9)

 Median (10%, 90%)

17.0 (10.0,30.0)

17.0 (10.0,29.0)

Albumin

 N

98

82

p = 0.674

 Mean (sd)

33.7 (6.9)

34.0 (4.7)

 Median (10%, 90%)

35.0 (28.0,40.0)

34.0 (29.0,39.0)

CRP

 N

98

82

p = 0.512

 Mean (sd)

15.7 (29.7)

17.9 (27.1)

 Median (10%, 90%)

4.0 (1.0,58.0)

6.0 (0.0,49.0)

Leukocytes

 N

98

82

p = 0.997

 Mean (sd)

10.3 (3.7)

10.2 (3.6)

 Median (10%, 90%)

10.0 (6.0,15.0)

10.0 (6.0,15.0)

  1. Basic patient characteristics, although the groups are comparable there is a higher degree of frailty associated factors apparent in the AMIS- arm with a higher level of support (65% vs 43%), a more frequent use of walking aids (63% vs 46%) and a higher rate of diagnosed dementia (32% vs 20%)