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. 2017 Nov 10;12(11):e0187801. doi: 10.1371/journal.pone.0187801

Table 3. Predictors of total length of hospital stay in days for patients with ISAR+ receiving CGA (n = 300).

Unadjusted Model 1
Corrected R2 = 0.077
Model 2
Corrected R2 = 0.143
Model 3
Corrected R2 = 0.174
β or B 95% CI p-value β or B 95% CI p-value β or B 95% CI p-value β or B 95% CI p-value
Age -0.21 -0.32 to -0.10 <0.001 -0.20 -0.31 to -0.09 0.001 -0.25 -0.36 to -0.14 <0.001 -0.25 -0.35 to -0.14 <0.001
Sex (male vs female) 5.17 2.51 to 7.82 <0.001 4.61 1.95 to 7.28 0.001 3.99 1.42 to 6.57 0.002 4.08 1.55 to 6.60 0.002
Number of admission diagnoses 0.38 0.27 to 0.49 <0.001
ISAR score 0.02 -0.09 to 0.14 0.708 0.10 -0.02 to 0.21 0.094
Activities of daily living impairment (yes vs no) 7.01 3.93 to 10.08 <0.001 8.27 5.33 to 11.21 <0.001
Mobility impairment
(yes vs no)
5.35 2.29 to 8.41 0.001 6.61 3.62 to 9.60 <0.001
Cognition impairment
(yes vs no)
0.28 -2.27 to 2.83 0.827 0.33 -2.09 to 2.76 0.788 0.33 -2.01 to 2.71 0.784
Signs of depression
(yes vs no)
4.53 1.30 to 7.76 0.006 3.94 0.86 to 7.03 0.012 4.49 1.47 to 7.51 0.004
Model 4
Corrected R2 = 0.174
Model 5
Corrected R2 = 0.172
Model 6
Corrected R2 = 0.243
β or B 95% CI p-value β or B 95% CI p-value β or B 95% CI p-value
Age -0.25 -0.36 to -0.14 <0.001 -0.26 -0.37 to -0.15 <0.001 -0.24 -0.35 to -0.14 <0.001
Sex (male vs female) 4.05 1.52 to 6.58 0.002 4.13 1.58 to 6.67 0.002 2.56 0.54 to 5.06 0.045
Number of admission diagnoses 0.28 0.18 to 0.39 <0.001
ISAR score 0.03 -0.08 to 0.15 0.550 0.02 -0.09 to 0.13 0.698
Activities of daily living impairment (yes vs no) 7.05 3.00 to 11.10 0.001 7.01 2.95 to 11.06 0.001 5.72 1.82 to 9.63 0.004
Mobility impairment
(yes vs no)
1.77 -2.27 to 5.81 0.389 1.68 -2.38 to 5.74 0.417 1.18 -2.71 to 5.06 0.552
Cognition impairment
(yes vs no)
0.30 -2.01 to 2.68 0.806 0.20 -2.21 to 2.60 0.873 -0.20 -2.51 to 2.10 0.862
Signs of depression
(yes vs no)
4.35 1.31 to 7.39 0.005 4.25 1.19 to 7.31 0.007 3.72 0.79 to 6.65 0.013

β, standardized regression coefficient; B, unstandardized regression coefficient; CI, confidence interval; other abbreviations as in Table 1.