Table 4. Parameter values used in deterministic sensitivity analysis.

Variable	Base case value	Lower bound	Upper bound	Source
Costs
Pneumonia cost	$3,752	$121	$5,804	Lower bound Eber et al, Upper bound Thompson et al [25, 26]
Bed day	$71	$57	$85	-20%, +20%
Relative Risk Reduction
RRR	0.30	0.2, 0.10	0.05, 0.01	-10 percentage points, -10 percentage points, -5 percentage points, -4 percentage points
No mouthwash
Pneumonia patients
Pneumonia	0.04	0.03	0.05	-20%, +20%
Critical care unit	0.54	0.43	0.64	-20%, +20%
MV	0.25	0.10	0.40	-60%+60%
No pneumonia patients
Critical care unit	0.10	0.08	0.11	-20%, +20%
MV	0.24	0.14	0.30	-40%+20%
Dead (critical care unit No-MV)	0.04	0.01	0.08	-80%, +90%
No mouthwash, Mean LoS (days)
Pneumonia, critical care unit	18.99	15.19	22.79	-20%, +20%
Pneumonia, critical care unit, MV	21.12	16.90	25.34	-20%, +20%
Pneumonia, general ward	11.36	9.09	13.63	-20%, +20%
Mouthwash
Pneumonia patients
Pneumonia	0.04	0.03	0.05	-20%, +20%
Critical care unit	0.53	0.43	0.64	-20%+20%
MV	0.25	0.10	0.40	-60%, +60%
No mouthwash patients
Critical care unit	0.10	0.08	0.11	-20%, +20%
MV	0.24	0.14	0.30	-40%+20%
Dead (critical care unit No-MV)	0.04	0.01	0.08	-80%, +90%
Mouthwash, Mean LoS (days)
Pneumonia, critical care unit	18.99	15.19	22.79	-20%, +20%
Pneumonia, critical care unit, MV	21.12	16.90	25.34	-20%, +20%
Pneumonia, general ward	11.36	9.09	13.63	-20%, +20%
Extreme cases
No patient on MV	-	-	-	Assumption
Best case scenario	-	-	-	Assumption
Worst case scenario	-	-	-	Assumption

*MV = mechanical ventilation.