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Table 1 Demographics and Healthcare Utilization of Patients by Segments in Baseline Year 2012

From: Predictive ability of an expert-defined population segmentation framework for healthcare utilization and mortality - a retrospective cohort study

Demographics

Mostly Healthy

Serious Acute

Stable Chronic

Complex Chronic without Frequent Hospital Admissions

Complex Chronic with Frequent Hospital Admissions

End of Life

All

p-valuea

Total (%)

481,772 (58.8%)

200,925 (24.5%)

43,757 (5.3%)

87,632 (10.7%)

3935 (0.5%)

1972 (0.2%)

819,993 (100.0%)

 

Age (in years)

 Mean (SD)

43.9 (15.6)

60.6 (13.9)

42.3 (15.8)

60.8 (15.0)

63.5 (14.5)

58.0 (13.1)

49.8 (17.2)

< 0.001

 21–30 (%)

119,741 (24.9%)

6439 (3.2%)

11,932 (27.3%)

3660 (4.2%)

102 (2.6%)

56 (2.8%)

141,930 (17.3%)

< 0.001

 31–40 (%)

104,275 (21.6%)

9602 (4.8%)

12,832 (29.3%)

5229 (6.0%)

186 (4.7%)

124 (6.3%)

132,248 (16.1%)

 

 41–50 (%)

95,434 (19.8%)

25,956 (12.9%)

6686 (15.3%)

10,914 (12.5%)

402 (10.2%)

347 (17.6%)

139,749 (17.0%)

 

 51–60 (%)

84,221 (17.5%)

54,330 (27.0%)

5524 (12.6%)

21,110 (24.1%)

867 (22.0%)

598 (30.3%)

166,640 (20.3%)

 

 61–70 (%)

49,255 (10.2%)

54,825 (27.3%)

3754 (8.6%)

21,970 (25.1%)

1003 (25.5%)

500 (25.4%)

131,307 (16.0%)

 

 71–80 (%)

22,399 (4.6%)

36,246 (18.0%)

2161 (4.9%)

17,423 (19.9%)

937 (23.8%)

264 (13.4%)

79,430 (9.7%)

 

 81–90 (%)

5878 (1.2%)

12,184 (6.1%)

750 (1.7%)

6509 (7.4%)

380 (9.7%)

74 (3.8%)

25,775 (3.1%)

 

 >  90 (%)

569 (0.1%)

1343 (0.7%)

108 (0.2%)

827 (0.9%)

58 (1.5%)

9 (0.5%)

2914 (0.4%)

 

Gender

 Male (%)

197,774 (41.1%)

90,856 (45.2%)

12,466 (28.5%)

40,581 (46.3%)

2017 (51.3%)

809 (41.0%)

344,503 (42.0%)

< 0.001

Ethnicity

 Chinese (%)

328,982 (68.3%)

154,035 (76.7%)

25,425 (58.1%)

66,829 (76.3%)

2821 (71.7%)

1503 (76.2%)

579,595 (70.7%)

< 0.001

 Malay (%)

47,270 (9.8%)

24,439 (12.2%)

6992 (16.0%)

8864 (10.1%)

526 (13.4%)

157 (8.0%)

88,248 (10.8%)

 

 Indian (%)

43,413 (9.0%)

14,218 (7.1%)

5100 (11.7%)

7084 (8.1%)

407 (10.3%)

82 (4.2%)

70,304 (8.6%)

 

 Others (%)

62,107 (12.9%)

8233 (4.1%)

6240 (14.3%)

4855 (5.5%)

181 (4.6%)

230 (11.7%)

81,846 (10.0%)

 

ED visits in 2012

 Median (IQR)

0 (0–0)

0 (0–0)

0 (0–0)

0 (0–1)

3 (1–4)

0 (0–1)

0 (0–0)

< 0.001

 Yes (%)

20,206 (4.2%)

13,386 (6.7%)

3004 (6.9%)

16,786 (19.2%)

1998 (50.8%)

345 (17.5%)

55,725 (6.8%)

< 0.001

SOC visits in 2012

 Median (IQR)

1 (0–3)

0 (0–2)

6 (3–12)

5 (2–11)

20 (12–33)

23 (9–45)

1 (0–4)

< 0.001

 Yes (%)

199,246 (41.4%)

81,491 (40.6%)

20,443 (46.7%)

64,523 (73.6%)

3149 (80.0%)

1438 (72.9%)

370,290 (45.2%)

< 0.001

Hospital Admissions in 2012

 Median (IQR)

0 (0–0)

0 (0–0)

1 (1–1)

0 (0–1)

4 (3–5)

1 (0–2)

0 (0–0)

< 0.001

 Yes (%)

17,258 (3.6%)

10,187 (5.1%)

4191 (9.6%)

18,760 (21.4%)

2154 (54.7%)

584 (29.6%)

53,134 (6.5%)

< 0.001

  1. Abbreviations: ED Emergency Department, SOC Specialist Outpatient Clinic. Numbers were presented as median ± interquartile range or number (%) as appropriate
  2. a Chi-square for categorical variables and one-way ANOVA test for continuous variables