Table 3 Characteristics of study population by COVID-19 and followed up for mortality status until 31^st May 2021

Total

7,711 (7.8)

5,289 (5.4)

56,211 (57.1)

29,154 (29.6)

98,365

Time from hip fracture to COVID-19 infection (days)

Mean (SD)

279.3 (238.3)

204.7 (204.7)

n/a

n/a

249.0 (228.2)

Age group (years)

60 to 69

514 (6.7)

149 (2.8)

6,403 (11.4)

1,155 (4.0)

8,221 (8.4)

70 to 79

1,667 (21.6)

876 (16.6)

16,311 (29.0)

4,498 (15.4)

23,352 (23.7)

80 to 89

3,742 (48.5)

2,568 (48.6)

24,547 (43.7)

13,384 (45.9)

44,241 (45.0)

90 + 

1,788 (23.2)

1,696 (32.1)

8,950 (15.9)

10,117 (34.7)

22,551 (22.9)

Sex

Female

5,787 (75.0)

3,144 (59.4)

41,698 (74.2)

18,156 (62.3)

68,785 (69.9)

Male

1,924 (25.0)

2,145 (40.6)

14,513 (25.8)

10,998 (37.7)

29,580 (30.1)

Residence^a

Own home/sheltered housing

5,305 (68.8)

3,358 (63.5)

50,401 (89.7)

19,019 (65.2)

78,083 (79.4)

Residential care

1,327 (17.2)

970 (18.3)

3,007 (5.3)

4,985 (17.1)

10,289 (10.5)

Nursing care

816 (10.6)

681 (12.9)

1,776 (3.2)

3,506 (12.0)

6,779 (6.9)

Hospital inpatient

263 (3.4)

280 (5.3)

1,027 (1.8)

1,644 (5.6)

3,214 (3.3)

Mobility^a

Freely mobile without aids

2,253 (29.2)

1,100 (20.8)

26,815 (47.7)

6,145 (21.1)

36,313 (36.9)

Mobile outdoors with one or more aids or a frame

2,961 (38.4)

2,174 (41.1)

19,970 (35.5)

11,304 (38.8)

36,409 (37.0)

Never goes outside without help or no functional mobility

2,397 (31.1)

1,939 (36.7)

9,089 (16.2)

11,252 (38.6)

24,677 (25.1)

Not recorded

100 (1.3)

76 (1.4)

337 (0.6)

453 (1.6)

966 (1.0)

Nutrition^a

Normal nutrition

5,488 (71.2)

3,567 (67.4)

44,028 (78.3)

18,223 (62.5)

71,306 (72.5)

At risk of malnutrition

1,522 (19.7)

1,141 (21.6)

8,155 (14.5)

6,869 (23.6)

17,687 (18.0)

Malnourished

498 (6.5)

429 (8.1)

2,854 (5.1)

3,132 (10.7)

6,913 (7.0)

Not recorded

203 (2.6)

152 (2.9)

1,174 (2.1)

930 (3.2)

2,459 (2.5)

Hospital Frailty Risk Score group

Low risk (< 5)

496 (6.4)

169 (3.2)

9,569 (17.0)

1,252 (4.3)

11,486 (11.7)

Intermediate risk (5–15)

2,888 (37.5)

1,686 (31.9)

29,213 (52.0)

9,498 (32.6)

43,285 (44.0)

High risk (> 15)

4,327 (56.1)

3,434 (64.9)

17,429 (31.0)

18,404 (63.1)

43,594 (44.3)

Cardiovascular disease

Yes

3,526 (45.7)

3,054 (57.7)

19,646 (35.0)

16,589 (56.9)

42,815 (43.5)

Malignancy

Yes

690 (8.9)

791 (15.0)

5,039 (9.0)

5,792 (19.9)

12,312 (12.5)

Dementia

Yes

3,236 (42.0)

2,458 (46.5)

9,903 (17.6)

13,283 (45.6)

28,880 (29.4)

Chronic pulmonary disease

Yes

2,287 (29.7)

1,714 (32.4)

14,932 (26.6)

10,024 (34.4)

28,957 (29.4)

Liver disease

Yes

271 (3.5)

218 (4.1)

1,794 (3.2)

1,293 (4.4)

3,576 (3.6)

Diabetes (Type 1 & 2)

Yes

1,642 (21.3)

1,298 (24.5)

10,222 (18.2)

6,377 (21.9)

19,539 (19.9)

Hemiplegia or paraplegia

Yes

265 (3.4)

185 (3.5)

1,562 (2.8)

944 (3.2)

2,956 (3.0)

Renal disease

Yes

2,003 (26.0)

1,861 (35.2)

10,930 (19.4)

9,948 (34.1)

24,742 (25.2)