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Table 1 Patient characteristics, frequency of intraoperative systolic hypotension (≥20 % from pre induction value) and prolonged hypotension. Values are number (percentage)

From: Care of elderly patients: a prospective audit of the prevalence of hypotension and the use of BIS intraoperatively in 25 hospitals in London

Variable

Patient characteristics

Frequency of systolic hypotension

Frequency of systolic hypotension lasting >20 min

Gender

Female

234 (48.9)

201 (85.9)

67 (27.4)

Male

245 (51.2)

197 (80.4)

74 (31.6)

Age

65–74

286 (59.5)

244 (85.3)

100 (35.0)

75–84

152 (31.6)

119 (78.3)

35 (23.0)

>85

43 (8.9)

35 (81.4)

6 (14.0)

Surgical speciality

General, breast and endocrine

188 (9.1)

158 (84.0)

48 (25.5)

Orthopaedics, trauma, plastic and spinal

145 (30.2)

115 (79.3)

37 (25.5)

Other

36 (7.5)

29 (80.6)

11 (30.6)

Gynaecology

35 (7.3)

29 (82.9)

15 (42.9)

Vascular

25 (5.2)

23 (92.0)

12 (48.0)

ENT

22 (4.6)

20 (90.9)

8 (36.6)

Thoracic

18 (3.7)

13 (72.2)

7 (38.9)

Ophthalmology

12 (2.5)

12 (100.0)

3 (25.0)

NCEPOD classification

Immediate

5 (1.0)

4 (80.0)

1 (20.0)

Urgent

64 (13.3)

57 (89.1)

15 (23.4)

Expedited

32 (6.7)

24 (75.0)

13 (40.6)

Elective

379 (79.0)

314 (82.9)

113 (29.8)