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Table 1 Descriptive statistics of patient population across study time periods

From: Effectiveness of a novel and scalable clinical decision support intervention to improve venous thromboembolism prophylaxis: a quasi-experimental study

Variable

 

Period 1

Period 2

Period 3

P value

Age (years)

Mean (SD)

53.6 (19.1)

53.6 (19.1)

54.0 (18.9)

<0.01

Sex

Female

40,333 (57.4%)

58,506 (57.1%)

28,799 (57.2%)

0.56

Race

White

38,317 (54.5%)

56,095 (54.8%)

27,039 (53.7%)

<0.01

 

Other

31,547 (44.9%)

45,984 (44.9%)

23,109 (45.9%)

 
 

Unknown

419 (0.6%)

329 (0.3%)

223 (0.4%)

 

Health Insurance

Self Pay

841 (1.2%)

1,258 (1.2%)

501 (1.0%)

<0.01

 

Insured

65,246 (92.8%)

99,895 (97.5%)

49,307 (97.9%)

 
 

Unknown

4,196 (6.0%)

1,255 (1.2%)

563 (1.1%)

 

Weight (kg)

Mean (SD)

82.3 (24.0)

82.8 (24.1)

82.8 (24.1)

<0.01

CrCl <30

Yes

5,159 (9.7%)

7,547 (9.9%)

3,828 (8.8%)

<0.01

 

No

47,855 (90.3%)

68,743 (90.1%)

39,513 (91.2%)

 

Length of Stay (days)

Mean (SD)

5.2 (7.7)

5.1 (7.6)

5.2 (7.0)

<0.01

DRG Weight

Mean (SD)

1.7 (1.9)

1.7 (1.9)

1.7 (2.0)

<0.01

Discharging Unit

Medicine

2,488 (46.2%)

47,973 (46.8%)

24,373 (48.4%)

<0.01

 

Ortho/Trauma

7,657 (10.9%)

11,506 (11.2%)

5,825 (11.6%)

 
 

Other Surgery

30,138 (42.9%)

42,929 (41.9%)

20,173 (40.0%)

 

Top 5 Primary Discharge Diagnoses

First

Device complications 2,856 (4.4%)

Device complications 4,423 (4.5%)

Device complications 2,355 (4.8%)

NA

 

Second

Osteoarthritis 2,327 (3.6%)

Osteoarthritis 3,505 (3.5%)

Osteoarthritis 1,805 (3.7%)

 
 

Third

CAD 2,104 (3.3%)

CAD 3,342 (3.4%)

Dysrhythmia 1,676 (3.5%)

 
 

Fourth

CHF 1,971 (3.0%)

Dysrhythmia 3,321 (3.4%)

CHF 1,460 (3.0%)

 
 

Fifth

Dysrhythmia 1,940 (3.0%)

Birth complications 2,935 (3.0%)

CAD 1,419 (2.9%)

 
  1. Abbreviations: CAD, coronary artery disease; CHF, congestive heart failure; CrCl, creatinine clearance; DRG, diagnosis-related group; SD, standard deviation.