Table 3 Predictors of number of aggressive interventions received by patients in last month of life
| Â | Univariable analysis1,2 | Multivariable models1,3 | ||
|---|---|---|---|---|
Model 1 | Model 2 | Model 3 | ||
IRR [95% CI] | IRR [95% CI] | IRR [95% CI] | IRR [95% CI] | |
Physical health status before last month of life | 0.99 [0.98, 1.01] | 0.99 [0.98, 1.01] | Â | Â |
Psychological health status before last month of life | 1.00 [0.98, 1.01] | Â | 0.99 [0.98, 1.01] | Â |
Functional health status before last month of life | 0.89* [0.83, 0.96] | Â | Â | 0.88* [0.81, 0.95] |
Length of hospital stay (in days) | 1.01* [1.00, 1.01] | 1.01* [1.01, 1.02] | 1.01* [1.01, 1.02] | 1.01* [1.01, 1.02] |
Patient-reported palliative care use before last month of life | 0.83 [0.66, 1.05] | 0.91 [0.71, 1.16] | 0.91 [0.70, 1.19] | 1.06 [0.82, 1.36] |
End of life care preference3 | ||||
 Minimal life extension [Ref] | ||||
  Moderate life extension | 0.96 [0.77, 1.21] | 0.92 [0.72, 1.16] | 0.88 [0.69, 1.12] | 0.93 [0.74, 1.17] |
  Aggressive life extension | 0.87 [0.67, 1.13] | 0.81 [0.62, 1.07] | 0.79 [0.59, 1.04] | 0.84 [0.64, 1.10] |
  Age at death above median | 0.87 [0.72, 1.05] | 0.92 [0.73, 1.14] | 0.91 [0.73, 1.15] | 0.93 [0.75, 1.16] |
  Male | 1.16 [0.96, 1.41] | 1.35* [1.06, 1.71] | 1.34* [1.06, 1.70] | 1.36* [1.08, 1.72] |
Highest education | ||||
 Primary or lower [Ref] | ||||
  Secondary | 1.06 [0.84, 1.33] | 1.22 [0.95, 1.57] | 1.23 [0.95, 1.59] | 1.15 [0.90, 1.48] |
  Above secondary | 1.21 [0.95, 1.53] | 1.30 [0.99, 1.71] | 1.30 [0.98, 1.71] | 1.24 [0.95, 1.63] |
Religion | ||||
 Christian [Ref] | ||||
  Buddhist/ Taoist | 1.37* [1.05, 1.78] | 1.43* [1.09, 1.89] | 1.41* [1.06, 1.89] | 1.43* [1.08, 1.88] |
  Muslim | 1.13 [0.82, 1.57] | 1.06 [0.75, 1.49] | 1.10 [0.77, 1.56] | 1.10 [0.78, 1.56] |
  Hindu/ Sikh | 1.22 [0.67, 2.19] | 1.20 [0.66, 2.18] | 1.19 [0.65, 2.19] | 1.38 [0.75, 2.53] |
  Free thinker/ No religion | 0.93 [0.64, 1.35] | 0.88 [0.59, 1.29] | 0.87 [0.58, 1.31] | 0.89 [0.60, 1.31] |
Type of cancer | ||||
 Colorectal [Ref] | ||||
  Breast | 1.34 [0.99, 1.81] | 1.71* [1.19, 2.45] | 1.64* [1.14, 2.37] | 1.81* [1.27, 2.55] |
  Respiratory | 1.50* [1.16, 1.94] | 1.67* [1.28, 2.18] | 1.66* [1.27, 2.18] | 1.68* [1.29, 2.19] |
  Genitourinary/ Gynaecologic | 1.17 [0.86, 1.58] | 1.28 [0.94, 1.74] | 1.25 [0.91, 1.71] | 1.29 [0.95, 1.75] |
  Others | 1.23 [0.84, 1.81] | 1.45 [0.97, 2.19] | 1.32 [0.85, 2.05] | 1.40 [0.94, 2.11] |
  Number of months before death survey was answered | 0.99 [0.93, 1.05] | 1.00 [0.94, 1.06] | 1.00 [0.94, 1.06] | 0.98 [0.92, 1.05] |