Table 1.
Overview of the general and study populations selected for the study broken down by sex and Welsh Index of Multiple Deprivation (WIMD) score
| General population | General population with any GP event | General population with any A&E event | Study population | Study population with eye-related GP event | Study population with eye-related A&E event | |
|---|---|---|---|---|---|---|
| Total count | 2 660 925 | 1 923 780 | 494 848 | 173 494 | 169 081 | 5088 |
|
| ||||||
| Sex | ||||||
| Male | 1 325 255 | 867 310 | 246 718 | 68 737 | 65 776 | 3320 |
| Female | 1 335 664 | 1 056 469 | 248 130 | 104 757 | 103 305 | 1768 |
| Missing | 6 | 1 | 0 | 0 | 0 | 0 |
|
| ||||||
| Deprivation score | ||||||
| WIMD 1 (most deprived) | 506 137 | 385 821 | 115 245 | 34 649 | 33 557 | 1268 |
| WIMD 2 | 491 846 | 376 240 | 103 187 | 33 632 | 32 764 | 1007 |
| WIMD 3 | 453 482 | 338 633 | 85 419 | 31 449 | 30 757 | 784 |
| WIMD 4 | 429 544 | 323 647 | 75 709 | 29 980 | 29 270 | 802 |
| WIMD 5 (least deprived) | 485 449 | 365 009 | 78 375 | 34 951 | 34 134 | 965 |
| Missing | 294 467 | 134 430 | 36 913 | 8833 | 8599 | 262 |
General population = all individuals registered to a SAIL GP practice at any time during the study period (85.1% of the mid-2017 whole Wales population); study population = individuals within the general population who had an eligible GP prescribing event or A&E event during the study period. A&E = accident and emergency. SAIL = Secure Anonymised Information Linkage.