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Table 2 Study characteristics

From: Communication tools for end-of-life decision-making in the intensive care unit: a systematic review and meta-analysis

Study ID

Sample size

Population description

Country

Design

Target of intervention

Intervention

Comparator

Measured outcome

Andereck 2014 [14]

Intervention 174, control 210

Patients admitted to the medical or surgical ICU of a tertiary care hospital for at least 5 consecutive days

USA

RCT

Family/SDM

The intervention group received a proactive ethics consultation. The ethics consultation assessed patient capacity and preferences, and assisted SDMs in medical decision-making, including DNR. The ethicist continued to follow the patient until discharge

Usual care

• Health care resource utilization

• Satisfaction with end-of-life care

Lautrette 2007 [21]

Intervention 63, control 63

Adult patients admitted to medical or surgical ICUs judged to be likely to die within a few days, with an identified SDM

France

RCT

Family/SDM

An intensive end-of-life communication intervention aimed at eliciting the patient’s values, acknowledging the family member’s voice and emotions, and to allow questions. Following the meeting, families were given a brochure on bereavement

Usual care

• Quality of communication

• Preference on life-sustaining treatment options

• Advance directive discussions

• Health care resource utilization

Schneiderman 2000 [23]

Intervention 35, control 35

ICU patients in whom value-based treatment conflicts arose (e.g., disagreements over CPR status, withdrawal of life support, etc.)

USA

RCT

Family/SDM

Offering of an ethics consultation from the hospital ethics service

Usual care

• Health care resource utilization

• Preference on life-sustaining treatment options

• Acceptability of intervention

Schneiderman 2003 [24]

Intervention 278, control 273

Critically ill adult patients admitted to medical or surgical ICUs

USA

RCT

Family/SDM

The intervention group received a proactive ethics consultation, which addressed current ethical issues, reviewed patient wishes and values, and provided recommendations for next steps regarding communication and decision-making

Usual

• Health care resource utilization

• Acceptability of intervention

Ahrens 2003 [32]

Intervention 43, control 108

Patients admitted to an academic tertiary care medical ICU

USA

Cohort

Family/SDM

Families/SDMs were provided with an intensive communication strategy, including daily medical updates by the attending physician, provision of treatment options, including non-curative/palliative options, and support by a clinical nurse specialist

Usual care

• Health care resource utilization

Campbell 2003 [29]

Intervention 20, control 18

Patients admitted to the medical ICU with either global cerebral ischemia or multisystem organ failure, with a retrospective control cohort and prospective interventional cohort

USA

Cohort

Family/SDM

Early involvement of palliative care service in communicating prognosis to the family, identifying advance directives and preference, and assisting with discussion and implementation of treatment options and palliative care

Usual care

• Preference on life-sustaining treatment options

• Health care resource utilization

Cox 2012 [15]

Intervention 10, control 17

SDMs for adult medical and surgical ICU patients on mechanical ventilation for equal to or greater than 10 days, expected to survive for greater than 72 hours without pre-existing tracheostomy

USA

Cohort

Family/SDM

The prolonged mechanical ventilation decision aid reviewed medical information, elicited the SM understanding of the patient’s preferences, clarified the role of the SDM, and provided guidance in decision-making

Usual care

• Quality of communication

• Comfort and confidence (decision conflict)

• Health care knowledge and literacy

• Health care resource utilization

• Preference on life-sustaining treatment options

Daly 2010 [16]

Intervention 354, control 135

Incapable patients with 72 hours of mechanical ventilation, with an identified SDM, admitted to surgical, medical, or neuroscience ICUs at two university-affiliated medical centers

USA, Canada

Cohort

Family/SDM

An intensive communication system, including a family meeting with a medical update, identification of goals of care, a treatment plan, and milestones for determining if the treatment was effective, conducted within 5 days of ICU admission and weekly thereafter.

Usual care

• Preference on life-sustaining treatment options

• Health care resource utilization

• Quality of communication

Dowdy 1998 [17]

Intervention 31, control 31

Sequential patients treated with mechanical ventilation for more than 96 hours, between June 1992 and October 1994

USA

Cohort

Family/SDM

Proactive ethics consultation, and daily as required, addressing advance directives, patient capacity, SDM knowledge of patient advance directive, anticipated conflicts, and limits of treatment

Usual care

• Preference on life-sustaining treatment options

• Health care resource utilization

• Quality of communication

Hatler 2012 [18]

Intervention 98, control 105

Patients admitted to a territory neurosurgical ICU who received mechanical ventilation for >96 hours, remained in ICU for 7 days or longer, and were not awaiting transfer out of ICU during that time

USA

Cohort

Family/SDM and HCPs

A surrogacy information and decision-making tool was filled out by the admitting nurse, documenting patient’s decision-making capacity, the identity of the SDM/POA, and prior advance directive. The nurse gave the patient or SDM an information sheet about surrogate decision-making and advance directives.

Usual care

• Health care resource utilization

Holloran 1995 [28]

Intervention 6, control 24

Patients admitted to a large, tertiary care ICU for any reason.

USA

Cohort

HCPs

“Decisions near the End of Life” program, a small-group workshop using cases to facilitate discussion of issues such as withholding or withdrawing treatment, eliciting patient and family wishes, patient competency, and conflict with families

Pre-intervention hospital cohort

• Health care resource utilization • Preference on life-sustaining treatment options

Knaus 1990 [25]

Intervention 705, control 760

All adult patients admitted to ICU, excluding those with uncomplicated myocardial infarction or those admitted with acute burns

France

Cohort

HCPs

HCPs were provided with a calculated estimate of hospital mortality daily on rounds until the patient died, or until 7 days, whichever came first

Usual care

• Preference on life-sustaining treatment options

Lamba 2012 [27]

Intervention 104, control 79

Patients admitted to a surgical ICU between March 2003 and May 2005 for liver transplantation

USA

Cohort

Family/SDM

Each patient had a palliative care assessment delineating prognosis, advance directives, family support, surrogate decision maker, and pain, within 24 hours of admission. The patient’s family received psychosocial and/or bereavement support. An interdisciplinary family meeting was held at 72 hours to address patient outcomes, treatment options, and goals of care, and family support was provided by a multidisciplinary team.

Usual care

• Quality of communication

• Preference on life-sustaining treatment options

• Advance directive discussions

• Health care resource utilization

Lilly 2000 [26]

Intervention 396, control 134

Consecutive admitted to the ICU of a tertiary care teaching hospital

USA

Cohort

Family/SDM

An intensive communication strategy, including a meeting with the attending physician within 72 hours for patients expected to stay >4 days, with predicted mortality >25 %, or change in functional status, unlikely to return to home

Usual care

• Advance directive discussions

• Quality of communication

• Health care resource utilization

McCannon 2012 [30]

Intervention 27, control 23

Patients admitted to the medical ICU age >50 years, currently incapable, likely to survive >24 hours, with an identified adult SDM.

USA

Cohort

Family/SDM

A 3-minute video decision support-tool was shown which reviewed CPR methods and outcomes, and the care of a sedated, mechanically ventilated patient, within 72 hours of ICU admission

Usual care

• Health care knowledge and literacy

• Preference on life-sustaining treatment options

• Acceptability of intervention

Norton 2007 [19]

Intervention 126, control 65

Adult patients admitted to a medical ICU with a hospital stay of 10 days, age >80 years, or two or more life-threatening comorbidities

USA

Cohort

Family/SDM

The intervention group had a proactive palliative care consultation, which facilitated decision-making and family member support, and followed the patient until discharge

Usual

• Health care resource utilization

Quenot 2012 [31]

Intervention 823, control 678

All patients who died in the ICU, or in hospital after discharge to another department, during two periods, one before and one after a 2005 French law on end-of-life and patient rights.

France

Cohort

Family/SDM

An intensive communication strategy, including daily meetings with the attending team, modalities for withdrawing and withholding treatment, a special ‘ethics’ section in the chart, and debriefing sessions

Pre-intervention hospital cohort

• Preference on life-sustaining treatment options

• Health care resource utilization

• Quality of communication

Shelton 2010 [20]

Intervention 114, control 113

Patients admitted to the surgical ICU, anticipated by the attending physician to remain for at least 7 days, or were expected to die within that time, during two periods

USA

Cohort

Family/SDM

During the intervention period, a family support coordinator assessed the family’s information needs, interpreted and explained relevant medical information, assisted the family in decision-making, and identified the need for referrals to spiritual care and to enhance the health care team’s understanding of the family’s needs.

Usual care

• Satisfaction with end-of-life care

• Quality of communication with HCPs

• Health care resource utilization

Curtis 2011 [22]

Intervention 514, control 565

Medical and surgical ICUs with sufficient ICU deaths to meet study sample size requirements (6 intervention hospitals, 6 control hospitals) Patients included those who died in ICU or within 30 hours of transfer to another hospital location.

USA

Cluster RCT

HCPs

A multifaceted intervention including education about palliative care, identification and training of ICU clinician local champions for palliative care, nurse and physician ICU directors to address barriers to improving end-of-life care, feedback of quality data including family satisfaction, and implementation of system supports such as palliative care order forms.

Usual care

• Satisfaction with end-of-life care

• Preference on life-sustaining treatment options

• Quality of communication

• Health care resource utilization

  1. RCT randomized controlled trial, SDM substitute decision-maker, CRP cardiopulmonary resuscitation, HCP health care provider