Baseline characteristics of individuals hospitalised for an ASCVD-related event at index discharge
| Total atherosclerotic cardiovascular disease (ASCVD) | |
| N | 167 978 |
| Age on discharge, years (mean, SD) | 67.4 (12.7) |
| Female | 65 707 (39.1) |
| Ethnic group | |
| White | 143 578 (85.4) |
| Other | 2373 (1.4) |
| Missing | 22 027 (13.1) |
| SIMD deprivation quintile (2009)* | |
| 5 (least deprived) | 26 294 (15.7) |
| 4 | 30 896 (18.4) |
| 3 | 34 330 (20.4) |
| 2 | 37 290 (22.2) |
| 1 (most deprived) | 39 168 (23.3) |
| ASCVD-related hospitalisation prior to 1 October 2009 | 67 114 (39.9) |
| Charlson Comorbidity Index (CCI) (within 12 months prior and incl. index event) | |
| 0 (no comorbidities)† | 30 743 (18.3) |
| 1 | 77 182 (45.9) |
| 2 | 33 709 (20.1) |
| 3 | 14 937 (8.9) |
| 4 or more comorbidities | 11 407 (6.8) |
| Mental health inpatient/day case within 12 months prior to index admission | 2994 (1.8) |
| At least one statin prescription in last 12 months prior to index admission‡ | 93 103 (55.4) |
| ASCVD type | |
| MI | 50 359 (30) |
| Stroke | 32 873 (20) |
| PAD | 15 149 (9) |
| Other ASCVD | 69 597 (41) |
*SIMD is a relative measure of deprivation across Scottish data zones.
†Absence of comorbidities as defined by CCI: in the case of the total ASCVD and other ASCVD populations, this means that individuals were not hospitalised for any of the 17 specified conditions. In the case of the MI, stroke and PAD populations, every individual has at least one CCI comorbidity, their index condition (ie, MI, stroke or PAD); thus, absence of comorbidity is not applicable (N/A).
‡For individuals with index hospitalisations in 2009, information on prior medication use is available from 1 April 2009 and onwards, thereby contributing a minimum of 6 months and up to 12 months of medication history. For all discharges recorded after 1 April 2010, medication history is available for 12 months prior to index admission.
MI, myocardial infarction; PAD, peripheral arterial disease; SIMD, Scottish Index of Multiple Deprivation.