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Table 1 Demographics and Past Healthcare Utilization of patients in the SingHealth Regional Health System

From: Evaluation of a practical expert defined approach to patient population segmentation: a case study in Singapore

Variable All Mostly Healthy Serious Acute Illness but Curable Stable Chronic Complex Chronic without frequent hospital admissions Complex chronic with frequent hospital admissions End of Life p-value
Number of patients (%) 825,874 (100) 506,101 (61.3) 44,023 (5.3) 177,550 (21.5) 90,540 (11.0) 4705 (0.6) 2955 (0.4) <0.001
Patient Demographics
 Age (in years), mean, (SD) 55.6 (9.8) 44.4 (15.6) 42.0 (15.8) 61.6 (13.6) 61.1 (15.1) 64.6 (14.5) 60.0 (13.0) <0.001
 21 – 39 (%) 261,095 (32) 217,648 (43) 23,898 (54) 10,873 (6) 8217 (9) 279 (6) 180 (6)  
 40 – 64 (%) 384,596 (47) 230,499 (46) 15,011 (34) 92,032 (52) 43,387 (48) 1955 (42) 1712 (58)  
 65 – 84 (%) 166,354 (20) 54,890 (11) 4646 (11) 68,607 (39) 35,063 (39) 2157 (46) 991 (34)  
 ≥ 85 (%) 13,829 (2) 3064 (1) 468 (1) 6038 (3) 3873 (4) 314 (7) 72 (2)  
Gender
 Male (%) 347,704 (42) 209,969 (41) 12,620 (29) 79,196 (45) 42,186 (47) 2447 (52) 1286 (44) <0.001
Ethnicity
 Chinese (%) 584,289 (71) 346,461 (68) 25,617 (58) 137,299 (77) 69,173 (76) 3415 (73) 2324 (79) <0.001
 Indian (%) 70,657 (9) 45,406 (9) 5121 (12) 12,286 (7) 7248 (8) 469 (10) 127 (4)
 Malay (%) 88,842 (11) 50,589 (10) 7022 (16) 21,226 (12) 9152 (10) 614 (13) 239 (8)
 Others (%) 82,086 (10) 63,645 (13) 6263 (14) 6739 (4) 4967 (5) 207 (4) 265 (9)
Past Healthcare Utilization per patient in the past year (2011)
 ED visits, total (%) 0.11 0.05 0.10 0.10 0.34 1.55 0.45 <0.001
 Specialist Clinic visits, total (%) 2.78 1.87 3.11 2.28 7.61 13.6 20.05 <0.001
 Hospital admissions, total (%) 0.10 0.04 0.12 0.07 0.36 1.71 0.77 <0.001
  1. Abbreviations: Emergency Department (ED). Numbers were presented as mean ± standard deviation or number (%) as appropriate