| 30-day readmission model (N = 7724) | 1-year readmission model (N = 7374)) | ||
---|---|---|---|---|
Univariate models | Multivariate model | Univariate models | Multivariate model | |
Male (ref. female) | 1.42 (1.26, 1.60)** | 0.95 (0.81, 1.11) | 1.36 (1.24, 1.5)** | 1 (0.89, 1.12) |
Age (ref. (0–40]) | ||||
 (40,65] | 2.63 (2.25, 3.06)** | 0.84 (0.68, 1.04) | 1.72 (1.54, 1.91)** | 0.8 (0.69, 0.92)** |
  > 65 | 4.71 (3.90, 5.68)** | 0.92 (0.69, 1.21) | 2.72 (2.33, 3.17)** | 0.69 (0.55, 0.87)** |
Insurance type (ref. no insurance) | ||||
 Urban employee | 3.76 (2.91, 4.86)** | 1.19 (0.88, 1.6) | 2.81 (2.37, 3.34)** | 1.42 (1.17, 1.72)** |
 Urban resident | 1.37 (0.98, 1.91) | 0.75 (0.51, 1.09) | 1.75 (1.41, 2.18)** | 1.22 (0.96, 1.56) |
 New rural cooperative | 1.08 (0.74, 1.59) | 1.12 (0.74, 1.71) | 0.96 (0.74, 1.24) | 0.99 (0.75, 1.31) |
 Other insurances | 1.77 (1.29, 2.42)** | 1.03 (0.71, 1.5) | 1.45 (1.17, 1.8)** | 0.86 (0.76, 0.99)* |
Married (ref. not married) | 0.44 (0.38, 0.50)** | 0.86 (0.72, 1.02) | 0.58 (0.53, 0.64)** | 0.86 (0.76, 0.97)** |
Urban residents (ref. Suburb) | 2.19 (1.90, 2.54)** | 1.4 (1.15, 1.7)** | 1.88 (1.69, 2.1)** | 1.41 (1.23, 1.61)** |
Diagnosis (ref. depressive disorders) | ||||
 Bipolar disorders | 1.29 (0.95, 1.74) | 1.1 (0.79, 1.54) | 1.44 (1.2, 1.72)** | 1.35 (1.11, 1.65)** |
 Schizophrenia and related disorders | 5.53 (4.30, 7.12)** | 1.44 (1.06, 1.94)* | 3.14 (2.68, 3.68)** | 1.35 (1.12, 1.63)** |
 Substance use disorders | 1.49 (0.98, 2.27) | 0.64 (0.4, 1.04) | 1.99 (1.55, 2.57)** | 1.14 (0.85, 1.53) |
 Other mental disorders | 3.03 (2.27, 4.06)** | 1.3 (0.93, 1.81) | 2.04 (1.68, 2.48)** | 1.18 (0.94, 1.47) |
Count of comorbidities (ref. none) | ||||
 1 | 2.53 (2.10, 3.04)** | 1.67 (1.34, 2.09)** | 2.03 (1.78, 2.32)** | 1.62 (1.39, 1.89)** |
  > 1 | 5.16 (4.41, 6.04)** | 2.17 (1.75, 2.7)** | 4.25 (3.78, 4.78)** | 2.63 (2.25, 3.07)** |
Use of ECT (ref. no ECT) | 0.23 (0.19, 0.29)** | 0.72 (0.56, 0.91)** | 0.45 (0.4, 0.51)** | 0.91 (0.79, 1.05) |
Psychiatric hospitalizations 1 year prior to index admission (ref. none) | ||||
 1 | 4.34 (3.65, 5.17)** | 1.91 (1.55, 2.36)** | 3.36 (2.9, 3.89)** | 1.96 (1.66, 2.31)** |
 2 | 21.30 (17.43, 26.04)** | 4.87 (3.8, 6.24)** | 16.75 (13.2, 21.26)** | 6.19 (4.76, 8.05)** |
  ≥ 3 times | 28.31 (23.39, 36.74)** | 5.12 (3.87, 6.78)** | 49.26 (33.62, 72.17)** | 15.84 (10.58, 23.72)** |
Admission sources (ref. emergency room) | ||||
 Outpatient | 3.92 (3.31, 4.64)** | 1.13 (0.92, 1.39) | 2.14 (1.92, 2.38)** | 1.07 (0.94, 1.22) |
 Other | 1.27 (0.82, 1.99) | 0.53 (0.31, 0.9)* | 1.21 (0.87, 1.68) | 0.85 (0.57, 1.27) |
Length of stay (ref. ≤20 days) | ||||
  (20,30] | 0.45 (0.33, 0.62)** | 0.45 (0.33, 0.62)** | 0.9 (0.76, 1.06) | 0.87 (0.73, 1.03) |
  (30,40] | 0.52 (0.37, 0.73)** | 0.46 (0.32, 0.66)** | 0.89 (0.74, 1.07) | 0.8 (0.66, 0.98)* |
  (40,60] | 0.75 (0.56, 1.02) | 0.53 (0.38, 0.74)** | 1.13 (0.94, 1.35) | 0.89 (0.73, 1.08) |
  (60,100] | 4.35 (3.47, 5.46)** | 1.6 (1.21, 2.13)** | 3.12 (2.63, 3.71)** | 1.39 (1.13, 1.72)** |
  > 100 | 10.40 (8.47, 12.77)** | 3.27 (2.46, 4.35)** | 7.96 (6.71, 9.45)** | 2.29 (1.82, 2.89)** |
Hospital type | ||||
 Tertiary hospitals (vs secondary hospitals) | 1.38 (1.16, 1.64)** | 2.61 (2.04, 3.35)** | 0.95 (0.83, 1.09) | 1.38 (1.14, 1.67)** |
 Urban hospitals (vs rural; hospitals) | 0.15 (0.13, 0.17)** | 0.54 (0.44, 0.66)** | 0.33 (0.3, 0.37)** | 0.75 (0.65, 0.87)** |