Table 1 Multiday elective surgery admissions: patient demographics, mean LOS and proportion followed by readmission within seven and 28 days of discharge

Number of unique individuals

13220

6610

4988

24818

Mean (SD) admissions per individual

1.06 (0.28)

1.12 (0.37)^a

1.12 (0.38)^a

1.1 (0.3)

Maximum admissions per individual

6

6

11

11

Mean LOS in days (SD)

4.7 (5.7)

6.2 (7.9)^a

6.1 (8.2)^a

5.4 (7.0)

Median age (IQR)

47 (31-68)

67 (56-75)^a

56 (42-66)^a

58 (36-70)

Female (%)

10347 (74)

3088 (41)^a

2577 (46)^a

16012 (59)

Followed by readmission within 7 days (%)

612 (4)

475 (6)^a

359 (6)^a

1446 (5)

Followed by readmission within 28 days (%)

1335 (10)

1155 (15)^a

889 (16)^a

3305 (12)