Related Experiment Video
Updated: Jun 12, 2026

Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department
Published on: January 29, 2011
Place of death outcomes of home ventilation patients in Singapore: a retrospective cohort study using a linked
Michelle Jessica Pereira1, Riyin Tay2, Pann Pei Chieh1
1Health Services and Outcomes Research, National Healthcare Group, Singapore, Singapore.
Background:
Singapore's Home Ventilation and Respiratory Support Service (HVRSS) provides care for patients with chronic respiratory failure needing long-term home ventilation. Currently, data on the distribution of places of death (PODs) among these patients is lacking. We examined the distribution of POD among deceased HVRSS patients over a 10-year period and explored clinical factors potentially associated with specific death locations. Additionally, we assessed the agreement between patients' preferred POD (PPOD), as documented in Advance Care Planning (ACP), and their actual POD.
Methods:
We conducted a retrospective cohort study of patients with at least one HVRSS encounter and who had died by 2019. Death-related information was obtained from an administrative dataset and linked with socio-demographic, clinical, and ACP data from other sources. Logistic regression was used to identify clinical factors associated with specific POD. Agreement analysis between actual POD and PPOD was performed among decedents with valid ACP documentation.
Results:
Among 118 patients studied, 44% died at home, 53% in hospitals, and 3% elsewhere. ACP documentation was available for 52 patients (44.1%), with 73.1% of those preferring home as their POD. Clinical factors associated with home as POD included diagnosis of motor neuron disease (MND) [odds ratio (OR) =5.6; 95% confidence interval (CI): 1.2-25.0; P=0.02], ventilation status at death (OR =14.9; 95% CI: 3.8-58.3; P<0.001), and feeding type at death (OR =3.8; 95% CI: 1.0-14.0; P=0.044). The percentage agreement between actual POD and PPOD was 57.1% (95% CI: 43-72%; P<0.001) with a Gwet's AC1 coefficient of 0.49 (95% CI: 0.31-0.66; P<0.001), indicating moderate agreement.
Conclusions:
This is the first study in Singapore to characterise POD patterns and associated factors among home ventilation patients, as well as to evaluate alignment between preferred and actual POD. These findings may inform policy and end-of-life care practices to better support HVRSS patients, particularly at their chosen POD.
Related Concept Videos
Assessment of Ventilation I: Respiratory Rate
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
Atelectasis II: Pathophysiology
Physiological Control of Respiration
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Acute Respiratory Failure-V
Ensure that patients are monitored continuously for their response to therapy, including changes in...
Respiratory Assessment: Purpose and Indications
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
Acute Respiratory Failure-III
