Table 2 NHFS observed in patients with hip fracture and 30-day mortality in a tertiary centre from Sao Paulo, Brazil, 2020–2023, compared with a Cohort in the UK and estimated mortality by each score category for preoperative assessment.

From: Performance of the Nottingham hip fracture score (NHFS) as a predictor of 30-day mortality after proximal femur fracture in an older people Brazilian cohort

NHFS levels

N (% from the total)—BR

30-day mortality, N (%)—BR

N (% from the total)—UK29

30-day mortality, N (%)—UK29

p-value BR vs. UK

NHFS estimated 30-day mortality (%)29

p-value Br observed mortality vs estimated

0

8 (1.60%)

0 (0.00)

59 (2.00)

0 (0.00)

0.70

 < 0.001

1

24 (4.80%)

0 (0.00)

47 (1.00)

1 (2.30)

1.00

1.10

0.151

2

10 (2.00%)

0 (0.00)

32 (1.00)

0 (0.00)

1.70

0.043

3

59 (11.7%)

0 (0.00)

743 (21.0)

12 (1.60)

0.67

2.70

0.636

4

153 (30.4%)

8 (5.20)

990 (27.0)

43 (4.30)

0.77

4.40

0.943

5

131 (26.0%)

13 (10.0)

888 (25.0)

75 (8.50)

0.69

6.90

0.511

6

77 (15.3%)

14 (18.2)

592 (16.0)

66 (11.2)

0.10

11.0

0.301

7

34 (6.70%)

8 (23.5)

219 (6.00)

35 (16.0)

0.39

16.0

0.635

8

5 (1.00%)

2 (40.0)

46 (1.00)

9 (19.6)

0.29

24.0

0.892

9

2 (0.50%)

0 (0.00)

6 (0.03)

1 (16.7)

1.00

34.0

0.670

10

0 (0.00)

0 (0.00)

0 (0.00)

0 (0.00)

45.0

  1. Significant values are in bold.
  2. NHFS Nottingham Hip Fracture Score