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Table 1 Demographic and clinical characteristics of the cohort

From: The association between preoperative modified frailty index and postoperative complications in Chinese elderly patients with hip fractures

Characteristics

Total (n = 965)

Non-frailty (n = 839)

Frailty (n = 126)

χ2/T

P

Age (mean ± SD)years

76.77 ± 8.76

76.75 ± 8.70

76.93 ± 9.19

−0.21

0.83

Age

   

0.01

0.91

 60-70 years

241 (25.00%)

209 (86.72%)

32 (13.28%)

  

 > 70 years

724 (75.00%)

630 (87.02%)

94 (12.98%)

  

Gender

   

2.49

0.11

 Male

328 (34.00%)

293 (89.33%)

35 (10.67%)

  

 Female

637 (66.00%)

546 (85.71%)

91 (14.29%)

  

Smoking

   

0.09

0.76

 No

813 (84.20%)

708 (87.08%)

105 (12.92%)

  

 Yes

152 (15.80%)

131 (86.18%)

21 (13.82%)

  

Alcohol intake

   

0.70

0.40

 No

849 (88.00%)

741 (87.28%)

108 (12.72%)

  

 Yes

116 (12.00%)

98 (84.48%)

18 (15.52%)

  

Marital status

   

0.29

0.59

 Married

753 (78.00%)

657 (87.25%)

96 (12.75%)

  

 Divorced / widowed

212 (22.00%)

182 (85.85%)

30 (14.15%)

  

Time from fracture to admission

   

1.28

0.26

 ≤ 48 h

618 (64.00%)

543 (87.86%)

75 (12.14%)

  

 > 48 h

347 (36.00%)

296 (85.30%)

51 (14.70%)

  

Time from fracture to surgery

   

1.42

0.23

 ≤ 48 h

61 (6.30%)

50 (81.97%)

11 (18.03%)

  

 > 48 h

904 (93.70%)

789 (87.28%)

115 (12.72%)