Table 1 Descriptive summary of the 90-day dental hospital readmission data.
From: Predicting all-cause 90-day hospital readmission for dental patients using machine learning methods
Variable | Total Cohort (N = 9260) | Readmitted (N = 1746) | Not Readmitted (N = 7514) | P value |
|---|---|---|---|---|
Demographic factors | ||||
Age in years at admission: Mean (SD) | 42.1 (20.9) | 49.8 (20.1) | 40.4 (20.6) | <0.001a |
Median (IQR) | 42.0 (26.0, 57.0) | |||
Range | (0.0, 90.0) | |||
Gender: Male | 5167 (55.8%) | 990 (56.7%) | 4177 (55.6%) | 0.40b |
Female | 4093 (44.2%) | 756 (43.3%) | 3337 (44.4%) | – |
Socioeconomic factors | ||||
Total charges: Mean (SD) | 76,009.7 (142,509.6) | 124,005.3 (216,769.3) | 64,857.2 (115996.4) | <0.001a |
Median (IQR) | 34,063.0 (18,732.8, 72,658.2) | |||
Range | (473.0, 4580,711.0) | |||
Primary expected payer: Medicare | 2099 (22.7%) | 645 (36.9%) | 1,454 (19.4%) | <0.001b |
Medicaid | 2688 (29%) | 555 (31.8%) | 2133 (28.4%) | – |
Private insurance | 2264 (24.4%) | 310 (17.8%) | 1954 (26%) | – |
Self-pay | 1448 (15.6%) | 136 (7.8%) | 1312 (17.5%) | – |
No charge | 166 (1.8%) | 21 (1.2%) | 145 (1.9%) | |
Other | 595 (6.4%) | 79 (4.5%) | 516 (6.9%) | – |
Median household income: $1–$37,999 | 3124 (33.7%) | 581 (33.3%) | 2543 (33.8%) | 0.60b |
$38,000–$47,999 | 2391 (25.8%) | 436 (25%) | 1955 (26%) | – |
$48,000–$63,999 | 2079 (22.5%) | 410 (23.5%) | 1669 (22.2%) | – |
$64,000 or more | 1666 (18%) | 319 (18.3%) | 1347 (17.9%) | – |
Clinical factors | ||||
Length of stay: Mean (SD) | 7.9 (14.7) | 12.8 (16.9) | 6.7 (13.9) | <0.001a |
Median (IQR) | 4.0 (2.0, 8.0) | |||
Range | (1.0, 340.0) | |||
Number of diagnosis on this record: Mean (SD) | 9.6 (6.3) | 14.0 (9.0, 18.0) | 7.0 (4.0, 12.0) | <0.001c |
Median (IQR) | 8.0 (5.0, 14.0) | |||
Range | (1.0, 25.0) | |||
Number of chronic conditions: Mean (SD) | 3.7 (3.3) | 6.0 (3.0, 8.0) | 2.0 (1.0, 5.0) | <0.001c |
Median (IQR) | 3.0 (1.0, 6.0) | |||
Range | (0.0, 17.0) | |||
Severity of Illness Subclass: Minor loss of function | 3626 (39.2%) | 270 (15.5%) | 3,356 (44.7%) | <0.001b |
Moderate loss of function | 3126 (33.8%) | 566 (32.4%) | 2,560 (34.1%) | – |
Major loss of function | 1797 (19.4%) | 633 (36.3%) | 1,164 (15.5%) | – |
Extreme loss of function | 711 (7.7%) | 277 (15.9%) | 434 (5.8%) | – |
Number of procedures on this record: Mean (SD) | 3.8 (3.1) | 4.0 (2.0, 6.0) | 3.0 (2.0, 4.0) | <0.001c |
Median (IQR) | 3.0 (2.0, 5.0) | |||
Range | (1.0, 15.0) | |||
