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Table 2 Frequency of rehospitalizations and emergency room visits

From: Impact of atypical long-acting injectable versus oral antipsychotics on rehospitalization rates and emergency room visits among relapsed schizophrenia patients: a retrospective database analysis

 

Atypical LAT

Oral AP

pvalue1

 

(N = 1032)

(N = 2796)

 

Rehospitalizations

All-cause rehospitalizations

 Number of rehospitalizations, mean ± SD

1.25 ± 2.09

1.61 ± 2.82

<.0001

 Mean number of days in hospital, mean ± SD

13.46 ± 27.48

15.69 ± 30.49

.0081

 Time to first rehospitalization, months, mean ± SD

7.47 ± 9.30

7.04 ± 8.86

.2362

 Frequency of rehospitalizations, mean ± SD

   

  Within the same month

0.07 ± 0.27

0.09 ± 0.31

.0688

  By 1 month

0.15 ± 0.41

0.20 ± 0.49

.0286

  By 3 months

0.30 ± 0.62

0.38 ± 0.76

.0288

  By 6 months

0.48 ± 0.84

0.58 ± 1.05

.0029

Mental disorder–related rehospitalizations 2

 Number of rehospitalizations, mean ± SD

1.24 ± 2.08

1.59 ± 2.79

<.0001

 Mean number of days in hospital, mean ± SD

13.44 ± 27.46

15.62 ± 30.41

.0093

 Time to first rehospitalization, months, mean ± SD

7.46 ± 9.31

7.02 ± 8.84

.2451

 Frequency of rehospitalizations, mean ± SD

   

  Within the same month

0.07 ± 0.27

0.09 ± 0.31

.0786

  By 1 month

0.15 ± 0.41

0.20 ± 0.49

.0360

  By 3 months

0.30 ± 0.62

0.37 ± 0.76

.0333

  By 6 months

0.48 ± 0.84

0.58 ± 1.05

.0032

Schizophrenia–related rehospitalizations 3

 Number of rehospitalizations, mean ± SD

1.15 ± 2.00

1.41 ± 2.54

.0005

 Mean number of days in hospital, mean ± SD

12.79 ± 27.07

14.28 ± 29.14

.0893

 Time to first rehospitalization, months, mean ± SD

7.39 ± 9.32

7.16 ± 8.99

.4063

 Frequency of rehospitalizations, mean ± SD

   

  Within the same month

0.06 ± 0.25

0.08 ± 0.29

.0854

  By 1 month

0.14 ± 0.39

0.18 ± 0.46

.1834

  By 3 months

0.28 ± 0.60

0.34 ± 0.72

.2080

  By 6 months

0.45 ± 0.81

0.52 ± 0.97

.0947

ER Visits

All-cause ER visits

 Number of ER visits, mean ± SD

2.33 ± 5.58

2.67 ± 6.38

.0158

 Time to first ER visit, months, mean ± SD

6.91 ± 8.82

6.79 ± 8.84

.6060

 Frequency of ER visits, mean ± SD

   

  Within the same month

0.08 ± 0.31

0.09 ± 0.34

.4026

  By 1 month

0.21 ± 0.60

0.25 ± 0.66

.0482

  By 3 months

0.44 ± 1.18

0.50 ± 1.15

.1375

  By 6 months

0.75 ± 1.84

0.78 ± 1.61

.3822

Mental disorder–related ER visits 2

 Number of ER visits, mean ± SD

1.95 ± 4.73

2.08 ± 4.33

.0881

 Time to first ER visit, months, mean ± SD

7.41 ± 9.27

7.34 ± 9.41

.6870

 Frequency of ER visits, mean ± SD

   

  Within the same month

0.07 ± 0.28

0.08 ± 0.30

.5467

  By 1 month

0.18 ± 0.54

0.21 ± 0.55

.2015

  By 3 months

0.38 ± 1.03

0.41 ± 0.94

.4573

  By 6 months

0.64 ± 1.46

0.64 ± 1.29

.6932

Schizophrenia–related ER visits 3

 Number of ER visits, mean ± SD

1.50 ± 3.36

1.54 ± 3.22

.2637

 Time to first ER visit, months, mean ± SD

7.77 ± 9.57

7.73 ± 9.56

.7920

 Frequency of ER visits, mean ± SD

   

  Within the same month

0.06 ± 0.26

0.06 ± 0.27

.5023

  By 1 month

0.15 ± 0.47

0.16 ± 0.45

.5133

  By 3 months

0.31 ± 0.90

0.32 ± 0.77

.8963

  By 6 months

0.50 ± 1.21

0.50 ± 1.04

.8894

  1. AP, antipsychotics; ER, emergency room; ICD-9-CM, International Classification of Diseases, 9th Revision, Clinical Modification; LAT, long-acting therapy; SD, standard deviation.
  2. Notes:
  3. 1. Calculated using two-sided paired t tests.
  4. 2. At least one diagnosis of mental disorders (ICD-9-CM codes: 290-319) during rehospitalization or ER visit.
  5. 3. At least one diagnosis of schizophrenia (ICD-9-CM codes: 295) during rehospitalization or ER visit.
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BMC Psychiatry

ISSN: 1471-244X

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