Table 1.
Patient demographics
| Patients | Age | LOS | Number of BP measurements | SBP | DBP | |
|---|---|---|---|---|---|---|
| Percentage of total | Mean (SD) | Median (IQR) | Median (IQR) | Mean (SD) | Mean (SD) | |
| All | 41,455 (100%) | 64 (19) | 4.7 (7.4) | 27 (34) | 127 (16) | 69 (9) |
| Sex | ||||||
| Men | 20,169 (49%) | 64 (19) | 4.9 (7.5) | 28 (34) | 128 (15) | 70 (9) |
| Women | 21,286 (51%) | 65 (20) | 4.6 (7.2) | 26 (33) | 126 (17) | 67 (9) |
| Age groups | ||||||
| 18–29 | 2,833 (7%) | 24 (4) | 2.8 (3.9) | 17 (19) | 118 (12) | 66 (8) |
| 30–39 | 2,722 (7%) | 35 (3) | 3.2 (4.5) | 19 (23) | 119 (14) | 69 (9) |
| 40–49 | 3,714 (9%) | 45 (3) | 3.6 (5.1) | 22 (26) | 122 (14) | 71 (10) |
| 50–59 | 5,674 (14%) | 55 (3) | 4.1 (5.8) | 25 (28) | 125 (15) | 71 (9) |
| 60–69 | 7,071 (17%) | 65 (3) | 4.5 (6.4) | 27 (32) | 127 (15) | 69 (9) |
| 70–79 | 8,680 (21%) | 74 (3) | 5.2 (7.9) | 30 (35) | 130 (16) | 68 (8) |
| 80–89 | 7,861 (19%) | 84 (3) | 6.8 (10.9) | 34 (44) | 132 (17) | 68 (9) |
| 90+ | 2,714 (7%) | 91 (1) | 7.5 (12) | 34 (45) | 133 (18) | 68 (9) |
| NHS Admission Method | ||||||
| Emergency | 26,290 (63%) | 66 (21) | 5.1 (8.9) | 26 (37) | 125 (14) | 67 (8) |
| Elective | 13,490 (33%) | 61 (17) | 3.9 (4.7) | 27 (26) | 128 (17) | 69 (9) |
| Other | 1,675 (4%) | 64 (18) | 9.8 (11.9) | 46 (48) | 126 (16) | 68 (9) |
| NHS Specialty | ||||||
| Medical | 18,113 (44%) | 69 (19) | 4.9 (8.9) | 25 (36) | 127 (18) | 69 (10) |
| Surgical | 22,543 (54%) | 60 (19) | 4.6 (6.3) | 28 (31) | 127 (15) | 68 (8) |
| Other | 792 (2%) | 66 (15) | 5.5 (9.8) | 27 (41) | 125 (16) | 68 (9) |
Abbreviations: BP, blood pressure; DBP, diastolic BP; IQR, interquartile range; LOS, length of stay; SBP, systolic BP. “Other” in NHS Admission Method refers to any admission method, that is not Emergency or Elective (e.g., maternity admissions or transfer from other hospital provider other than in an emergency); “other” in NHS Specialty refers to any specialty that is not Medical or Surgical.