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Table 1 Demographic data before and after propensity score matching. Data represent mean (standard deviation)

From: Comparison of radiographic changes in rectangular curved short stem with thin versus thick porous coating for cementless total hip arthroplasty: a retrospective study with a propensity score matching

 

Thicker group

Thinner group

p value

Before matching

n = 39

n = 66

 

 Gender (male to female)

11:28

8:58

0.064

 Age, years

64.9 (13.0)

71.4 (10.1)

0.0053

 Body mass index, kg/m2

23.0 (4.5)

23.9 (5.0)

0.36

 Follow-up, months

33.4 (11.5)

23.3 (11.3)

< 0.0001

 Canal flare index

3.4 (0.5)

3.5 (0.4)

0.18

After matching

n = 25

n = 25

 

 Gender (male to female)

4:21

3:22

1

 Age, years

70.5 (12.0)

69.3 (10.4)

0.71

 Body mass index, kg/m2

22.0 (4.4)

22.0 (4.6)

0.96

 Follow-up, months

31.6 (10.8)

30.2 (12.2)

0.68

 Canal flare index

3.4 (0.55)

3.4 (0.46)

0.76