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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: J Am Med Dir Assoc. 2016 Jun 24;17(9):839–845. doi: 10.1016/j.jamda.2016.05.021

Table 1.

Characteristics of Transfers that Occurred Within 48 Hours and 30 Days of SNF Admission vs. Transfers that Occurred 30 days or Longer After SNF Admission

Characteristics Number (%) with Specified Characteristic p value1 p value2

Transferred
within 48 hours of
SNF admission


(N =353)
Transferred
less than 30
days after SNF
admission

(N = 2,327)
Transferred 30
days or longer
after SNF
admission

(N = 2,331)
RISK FACTORS FOR HOSPITAL
ADMISSION3
Multiple comorbidities 173 (49.0) 1,222 (52.5) 1,173 (50.3) 0.646 0.134
Polypharmacy 121 (34.3) 891 (38.3) 1,000 (42.9) 0.002 0.001
CHF 61 (17.3) 459 (19.7) 410 (17.6) 0.887 0.061
COPD 46 (13.0) 372 (16.0) 348 (14.9) 0.348 0.318
Dementia 21 (5.9) 126 (5.4) 251 (10.8) 0.005 < 0.001
Fracture 31 (8.8) 192 (8.3) 149 (6.4) 0.094 0.015
Cancer 16 (4.5) 147 (6.3) 78 (3.3) 0.258 < 0.001
Surgical complications 20 (5.7) 133 (5.7) 79 (3.4) 0.034 < 0.001
ESRD - on dialysis 19 (5.4) 97 (4.2) 81 (3.5) 0.078 0.217
PRIOR HOSPITALIZATIONS
In past 30 days 274 (77.6) 1840 (79.1) 391 (16.8) .000 .000
In past year, but not past 30 days 23 (6.5) 186 (8.0) 1057 (45.3) .000 .000
REASONS FOR TRANSFER3
Signs and Symptoms
Abdominal pain 14 (4.0) 113 (4.9) 94 (4.0) 0.953 0.173
Abnormal vital signs 120 (34.0) 814 (35.0) 763 (32.7) 0.638 0.105
Altered mental status 106 (30.0) 622 (26.7) 681 (29.2) 0.754 0.059
Behavioral symptoms 58 (16.4) 319 (13.7) 387 (16.6) 0.936 0.006
Bleeding 27 (7.6) 169 (7.3) 193 (8.3) 0.687 0.195
Chest pain 16 (4.5) 100 (4.3) 81 (3.5) 0.321 0.146
Diarrhea 5 (1.4) 35 (1.5) 24 (1.0) 0.512 0.148
Edema 9 (2.5) 75 (3.2) 57 (2.4) 0.906 0.110
Fall 16 (4.5) 113 (4.9) 267 (11.5) < 0.001 < 0.001
Fever 28 (7.9) 253 (10.9) 30 (13.1) 0.006 0.020
Decreased food and/or fluid intake 33 (9.3) 256 (11.0) 283 (12.1) 0.129 0.224
Functional decline 40 (11.3) 307 (13.2) 433 (18.6) 0.001 < 0.001
Gastrostomy tube blockage/displacement 7 (2.0) 35 (1.5) 41 (1.8) 0.767 0.492
Loss of consciousness 7 (2.0) 48 (2.1) 43 (1.8) 0.858 0.591
Nausea/vomiting 19 (5.4) 146 (6.3) 182 (7.8) 0.107 0.041
Pain (uncontrolled) 60 (17.0) 410 (17.6) 461 (19.8) 0.218 0.059
Respiratory infection 12 (3.4) 82 (3.5) 148 (6.3) 0.029 < 0.001
Seizure 7 (2.0) 28 (1.2) 23 (1.0) 0.097 0.478
Shortness of breath 98 (27.8) 594 (25.5) 493 (21.1) 0.005 < 0.001
Skin wound/pressure ulcer 29 (8.2) 183 (7.9) 208 (8.9) 0.662 0.192
Unresponsiveness 40 (11.3) 242 (10.4) 244 (10.5) 0.623 0.940
Urinary incontinence (new) 4 (1.1) 60 (2.6) 98 (4.2) 0.005 0.002
Weight loss 0 (0.0) 5 (0.2) 5 (0.2) 0.384 0.998
Abnormal Test Results before
Transfer3
Anemia 13 (3.7) 237 (10.2) 174 (7.5) 0.009 0.001
Electrocardiogram 1 (0.3) 21 (0.9) 24 (1.0) 0.174 0.657
Hypoglycemia 5 (1.4) 32 (1.4) 39 (1.7) 0.723 0.407
Hyperglycemia 7 (2.0) 82 (3.5) 86 (3.7) 0.102 0.762
International Normalized Ratio (INR) - high 1 (0.3) 16 (0.7) 6(0.3) 0.929 0.032
Kidney function abnormal 5 (1.4) 105 (4.5) 102 (4.4) 0.008 0.821
Leukocytosis 3 (0.8) 38 (1.6) 27 (1.2) 0.607 0.167
Pulse oximetry 72 (20.4) 402 (17.3) 359 (15.4) 0.017 0.084
Urinalysis or urine culture 5 (1.4) 66 (2.8) 118 (5.1) 0.002 < 0.001
X-ray 8 (2.3) 122 (5.2) 186 (8.0) < 0.001 < 0.001
Other Factors3
Primary care clinician decision 188 (53.3) 1,158 (49.8) 1,234 (52.9) 0.911 0.030
Resident and/or family insisted on transfer 64 (18.1) 398 (17.1) 348 (14.9) 0.120 0.043
Advance directive not in place 27 (7.6) 159 (6.8) 149 (6.4) 0.374 0.545
TIME OF DAY AND DAY OF WEEK4
Morning (7 am-noon) 95 (31.1) 601 (29.6) 550 (26.7)
Afternoon (noon - 7 pm) 118 (38.8) 864 (42.6) 885 (42.9) 0.176 0.105
Evening (7 pm - midnight) 62 (20.4) 352 (17.4) 380 (18.4)
Night (midnight - 7 am) 29 (9.5) 210 (10.4) 246 (11.9)
Weekday 256 (72.5) 1789 (76.8) 1787 (76.7) 0.089 0.943
Weekend 97 (27.5) 541 (29.2) 544 (23.3)
EVALUATION BEFORE TRANSFER4
On site (vs. telephone) medical evaluation
before transfer
70 (19.8) 568 (24.4) 487 (20.9) 0.646 0.004
DIAGNOSTIC TESTS BEFORE
TRANSFER3
Blood tests 29 (8.2) 364 (15.6) 337 (14.5) 0.001 0.258
EKG 2 (0.6) 32 (1.4) 29 (1.2) 0.267 0.694
Urinalysis and/or culture 5 (1.4) 96 (4.1) 170 (7.3) < 0.001 < 0.001
Venous Doppler study 1 (0.3) 20 (0.9) 16 (0.7) 0.374 0.500
X-ray 15 (4.2) 167 (7.2) 276 (11.8) < 0.001 < 0.001
INTERVENTIONS BEFORE
TRANSFER3
New medication(s) 43 (12.2) 340 (14.6) 397 (17.0) 0.022 0.024
Intravenous or subcutaneous fluids 5 (1.4) 88 (3.8) 89 (3.8) 0.022 0.948
Increase oral fluid intake 0 (0.0) 4 (0.2) 13 (0.6) 0.160 0.029
Oxygen 80 (22.7) 495 (21.3) 475 (20.4) 0.323 0.452
CLINICIAN AUTHORIZING
TRANSFER4
Primary care physician, nurse practitioner,
or physician assistant
259 (83.0) 1787 (87.6) 1813 (88.1) 0.012 0.687
Covering physician 53 (17.0) 252 (12.4) 246 (11.9)
OUTCOME OF TRANSFER4
Emergency Department visit only with
return to Skilled Nursing Facility
51 (15.0) 292 (13.3) 471 (21.4) 0.007 <0.001
Admitted as inpatient 288 (85.0) 1905 (86.7) 1732 (78.6)
RATING OF PREVENTABILITY4
Potentially preventable 76 (23.8) 542 (25.1) 467 (21.5) 0.354 0.005
Not preventable 243 (76.2) 1,617 (74.9) 1,705 (78.5)
OPPORTUNITIES FOR
IMPROVEMENT3,5
Changes could have been detected earlier 11 (14.5) 114 (21.0) 123 (26.3) 0.026 0.047
Communication could have been better 9 (11.8) 86 (15.9) 95 (20.3) 0.081 0.065
Condition might have been managed in
SNF with available sources
19 (25.0) 170 (31.4) 192 (41.1) 0.008 0.001
Earlier discussion of preferences with
resident/family
14 (18.4) 89 (16.4) 77 (16.5) 0.676 0.977
ACP could have been in place earlier 8 (10.5) 62 (11.4) 35 (7.5) 0.364 0.034
Resources not available to manage the
change
25 (32.9) 144 (26.6) 102 (21.8) 0.035 0.081
1

p values calculated by chi square tests comparing characteristics of transfers that occurred within 48 hours of SNF admission to characteristics of transfers that occurred 30 days or longer after admission to the SNF. Values are highlighted that reached significance at the .05 level. Within categories of characteristics in which multiple comparisons were made, a Bonferroni correction was considered in evaluating the p values.

2

p values calculated by chi square tests comparing characteristics of transfers that occurred less than 30 days after SNF admission to characteristics of transfers that occurred 30 days or longer after admission to the SNF. Values are highlighted that reached significance at the .05 level. Within categories of characteristics in which multiple comparisons were made, a Bonferroni correction was considered in evaluating the p values.

3

N’s vary because more than one item could have been selected. Bonferroni correction was considered in evaluating these p values. For example in the category of Risk Factors for Hospital Admission, 9 comparisons were made. Thus a significant p value with the correction would be less than or equal to .05/9 = .0055.

4

Answers were mutually exclusive; N’s vary because not all items were answered on each QI tool. Bonferroni correction was not applied to these items.

5

N is only those rated as potentially preventable.