Table 2 Outcomes of subgroup analysis of SSRF versus conservative treatment

Fracture Type

Non-flail

0.52 [0.32, 0.84]

0.007

11

1.15[−0.33 2.62]

0.13

23

0.17[−0.04, 0.37]

0.11

23

Flail

0.39 [0.24, 0.63]

0.001

9

1.07[−2.20, 4.35]

0.52

12

−0.37[−0.73,0.01]

0.04

10

Age

Mixed age

0.49 [0.35, 0.67]

0.0001

18

1.12[−0.04, 2.27]

0.06

37

0.52 [−0.42, 1.47]

0.28

36

 ≥ 60 y

0.72 [0.55, 0.94]

0.01

6

5.82 [3.20, 8.44]

 < 0.0001

6

3.77 [0.82, 6.73]

0.01

5

Timing of fixation

Timing < 72 h

0.92 [0.61, 1.39]

0.69

8

−2.14[−4.03, −0.25]

0.03

10

−0.04[−0.43,0.36]

0.86

12

Timing by doctor

0.43 [0.32, 0.59]

0.00001

20

2.88 [1.59, 4.17]

0.0001

25

0.21 [0.03, 0.40]

0.02

24

Study design

Prospective

0.68 [0.28, 1.64]

0.39

8

−0.72 [−2.86, 1.42]

0.51

11

0.34 [−0.16, 0.84]

0.18

10

Retrospective

0.50 [0.36, 0.70]

0.0001

23

2.50 [1.27, 3.72]

0.0001

31

0.15 [−0.21, 0.52]

0.41

30

Fracture Type

Non-fail

−0.03[−0.26,0.20]

0.81

18

0.81 [0.60, 1.09]

0.16

15

1.24 [0.77, 2.00]

0.38

9

Flail

−0.26[−0.47,0.04]

0.02

10

0.79 [0.64, 0.98]

0.03

9

1.06 [0.68, 1.65]

0.79

8

Age

Mixed age

−0.76[−1.21, −0.31]

0.0009

30

0.92 [0.74, 1.16]

0.49

26

1.27[0.77, 2.10]

0.35

12

 ≥ 60 y

3.13 [0.35, 5.91]

0.03

5

3.43[1.34, 8.76]

0.01

3

5.31[3.98, 7.08]

0.00001

3

Timing of fixation

Timing < 72 h

−0.27[−0.51, −0.03]

0.03

7

0.88 [0.66, 1.16]

0.37

10

0.81 [0.30, 2.16]

0.67

4

Timing by doctor

−0.02 [−0.35, 0.31]

0.92

22

0.89 [0.64, 1.23]

0.48

15

1.43 [1.05, 1.94]

0.02

14

Study design

Prospective

−0.11 [−0.45, 0.24]

0.53

7

0.91 [0.65, 1.28]

0.60

8

0.93 [0.51, 1.70]

0.83

6

Retrospective

0.05 [−0.22, 0.32]

0.70

27

1.06 [0.80, 1.42]

0.68

22

1.64 [1.06, 2.54]

0.03

16