Description of the data
| N | Age entry | Age exit | Hospital visits | ||||||||||
| Sex | Dead | Individuals | Admitted | Hospital visits | Mean | Median | SD | Mean | Median | SD | Mean | Median | SD |
| Male | False | 633 953 | 429 659 | 2 315 915 | 50.9 | 49.4 | 10.3 | 65.6 | 64.3 | 9.8 | 3.7 | 2.0 | 6.8 |
| Male | True | 283 835 | 283 835 | 2 742 686 | 68.0 | 69.3 | 11.7 | 75.6 | 77.1 | 11.4 | 9.7 | 7.0 | 11.4 |
| Female | False | 730 671 | 511 632 | 2 764 040 | 52.7 | 51.1 | 11.6 | 67.4 | 66.1 | 10.8 | 3.8 | 2.0 | 7.0 |
| Female | True | 318 671 | 318 671 | 2 895 443 | 72.1 | 73.8 | 12.0 | 79.7 | 81.7 | 11.5 | 9.1 | 6.0 | 11.0 |
| Both | False | 1 364 624 | 941 291 | 5 079 955 | 51.9 | 50.3 | 11.1 | 66.6 | 65.3 | 10.4 | 3.7 | 2.0 | 6.9 |
| Both | True | 602 506 | 602 506 | 5 638 129 | 70.1 | 71.7 | 12.0 | 77.8 | 79.5 | 11.6 | 9.4 | 6.0 | 11.2 |
| Both | All | 1 967 130 | 1 543 797 | 10 718 084 | 57.5 | 55.4 | 14.1 | 70.0 | 69.2 | 11.9 | 5.4 | 3.0 | 8.8 |
The population included almost 2 million individuals (one-third of whom died during the study). See online supplementary file 3 for descriptives by deprivation including ICD-10 codes.
N refers to the total number in the study. (Individuals), the population under study. (Admitted), those admitted to hospital at least once. (Hospital visits), the total number of hospital admission records ; Age entry refers to age at the start of the study period (1 December 2000); Age exit refers to age at the end of the study period (31 January 2016) or at the end of life; Hospital visits refers to the number of records of visiting the hospital per individual;
ICD-10, International Classification of Disease Codes, Tenth Revision.