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. 2013 Jul 8;12:16. doi: 10.1186/1472-6955-12-16

Table 3.

Multiple logistic regression predicting patient’s post-operative physical health (PCS)

Patient’s post-op physical health (PCS) (dependent variable)
  
 95.0% C.I
  Beta S.E. Wald d p Lower Upper
Patient pre-op (independent) variables
Step 1: chi square = 29.075, -2 Log Likelihood = 76.776, R = .305, Nagelkerke R2 = .415
PCS
 -.131
 .037
 12.016
 1
 0.001**
 .816
 .945
MCS
 -.075
 .027
 7.616
 1
 0.006*
 .880
 .979
Step 2: chi square =7.864, -2 Log Likelihood =68.911, R = .370, Nagelkerke R2 = .504
PCS
 -.214
 .006
 10.403
 1
 0.001**
 .709
 .919
MCS
 -.110
 .036
 9.182
 1
 0.002*
 .834
 .962
Physical limitation
 .007
 .022
 .086
 1
 0.769
 .964
 1.051
Angina freq/severity
 .053
 .028
 3.541
 1
 0.060
 .998
 1.114
Constant
 9.311
 2.511
 13.753
 1
 <0.001
 -
 -
Partner pre-op (independent) variables
Step 1: chi square = 12.425, -2 Log Likelihood = 93.425, R = .144, Nagelkerke R2 = .19
PCS
 -.059
 .029
 5.743
 1
 0.007*
 .883
 .988
MCS
 -.038
 .025
 2.335
 1
 0.126
 .917
 1.011
Step 2: chi square = .002, -2 Log Likelihood = 3.423, R = .144, Nagelkerke R2 = .106
PCS
 -.069
 .030
 5.321
 1
 0.021*
 .880
 .990
MCS
 -.039
 .032
 1.499
 1
 0.221
 .904
 1.024
EFD
 .001
 .023
 .002
 1
 0.968
 .956
 1.048
Step3: chi square = 4.515, -2 Log Likelihood = 88.909, R = .191, Nagelkerke R2 = .260
PCS
 -.069
 .033
 3.739
 1
 0.050*
 .878
 1.001
MCS
 -.067
 .036
 3.393
 1
 0.065
 .872
 1.004
EFD
 .028
 .029
 1.077
 1
 0.316
 .974
 1.086
Social deprivation
 −1.899
 1.006
 3.559
 1
 0.059
 .021
 1.077
Constant 6.547 1.971 11.029 1 <0.001 - -

PCS physical component score, MCS mental component score, EFD emotion functioning dimension, angina freq/severity angina frequency and severity, post-op post-operative, * p < 0.005; ** p < 0.001.