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Table 1 Baseline characteristics at time of arrival to the EDa

From: Increasing incidence of hypotension in the emergency department; a 12 year population-based cohort study

Variable Total (%) SBP ≤ 100 mm Hg 90 > SBP ≤ 100 mm Hg 80 > SBP ≤ 90 mm Hg SBP ≤ 80
mm Hg
N (%) 3,268 (100 %) 1,725 (100 %) 920 (100 %) 623 (100 %)
Age in years, Median (IQR) 68 (50–80) 65 (45–79) 69 (54–80) 72 (58–82)
Sex (%)     
     Male 1,602 (49 %) 792 (46 %) 462 (50 %) 348 (56 %)
     Female 1,666 (51 %) 933 (54 %) 458 (50 %) 275 (44 %)
Age in age groups, yr (%)     
     18–39 509 (16 %) 348 (20 %) 117 (13 %) 44 (7 %)
     40–64 942 (29 %) 500 (29 %) 275 (30 %) 167 (27 %)
     65–84 1,313 (40 %) 630 (37 %) 388 (42 %) 295 (47 %)
     85+ 504 (15 %) 247 (14 %) 140 (15 %) 117 (19 %)
Charlson Comorbidity Index (%)     
     0 1,291 (40 %) 739 (43 %) 336 (37 %) 216 (35 %)
     1 to 2 1,119 (34 %) 572 (33 %) 334 (36 %) 213 (34 %)
     >2 858 (26 %) 414 (24 %) 250 (27 %) 194 (31 %)
Vital variables     
     Systolic blood pressure, Median (IQR) 91 (84–96) 96 (93–97) 87 (84–89) 74 (66–79)
     Diastolic blood pressure, Median (IQR) 55 (47–63) 60 (53–67) 54 (47–60) 44 (37–50)
     Heart rate, Median (IQR)b 82 (68–100) 81 (68–96) 85 (68–104) 86 (68–104)
Shock Index (SI), n (%)     
     SI, Median (IQR) 0.9 (0.8-1.2) 0.9 (0.7-1.0) 1.0 (0.8-1.2) 1.2 (0.9-1.5)
Time of contact     
     Day (07:00–14:59) 1,536 (47 %) 779 (45 %) 462 (50 %) 295 (47 %)
     Evening (15:00–22:59) 1,152 (35 %) 640 (37 %) 297 (32 %) 215 (35 %)
     Night (23:00–06:59) 580 (18 %) 306 (18 %) 161 (18 %) 113 (18 %)
Mortality (Overall)     
     7-day mortality, n (%) 489 (15 %) 150 (9 %) 153 (17 %) 189 (30 %)
     30-day mortality, n (%) 731 (22 %) 264 (15 %) 233 (25 %) 234 (38 %)
     90-day mortality, n (%) 922 (28 %) 363 (21 %) 286 (31 %) 273 (44 %)
  1. aValues expressed as total number (fraction) and medians [25 percentile-75 percentile] as appropriat. Chi-squared test for categorical variables and Kruskal-Wallis test for continuous variables. b128 observations missing