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Table 3 Neurologically intact survival, Cerebral Performance Category 1–2, according to bystander CPR group

From: Impact of dispatcher-assisted cardiopulmonary resuscitation on neurologically intact survival in out-of-hospital cardiac arrest: a systematic review

Author, year of publication

CPC 1 or 2 at discharge

CPC 1 or 2 at one-month

CPC 1 or 2 at six-month

Adjusted OR (CI) for CPC at …

Proportion of OHCA calls where DA-CPR was provided % (m/M)

DA-CPR provided % (n/N)

Bystander CPR provided without DA % (n/N)

No bystander CPR (n/N)

DA-CPR provided % (n/N)

Bystander CPR provided without DA % (n/N)

No bystander CPR % (n/N)

DA-CPR provided % (n/N)

Bystander CPR provided without DA % (n/N)

No bystander CPR % (n/N)

Chang et al., 2018 [37]

5.1% (38/747)

7.5% (22/293)

1.5% (15/980)

      

…discharge:e

No BCPR: reference

BCPR: 3.32 (1.38–7.97)

DA-CPR: 2.82 (1.25–6.38)

37.0% (747/2020)

Goto et al., 2014 [38]

   

3.7% (74/2019)a

6.3% (44/703)

2.5% (57/2287)

   

…one-month:f

No BCPR: reference

BCPR: 1.68 (1.07–2.62)

DA-CPR: 1.81 (1.24 to 2.67)

40.3% (2019/5009)

Harjanto et al., 2016b [39]

   

0% (0/52)

4.2% (32/769)

1.6% (34/2147)

    

1.8% (52/2968)

Hiltunen et al., 2015 [40]

      

26.4% (14/53)

22.9% (11/49)

21.2% (7/33)

 

39.3% (53/135)

Lewis et al., 2013 [42]

16.7% (35/210)

 

16.0% (15/94)

       

44.1% (210/476)

Park et al., 2018 [44]

5.0% (961/19,343)

5.7% (384/6753)

2.2% (605/27,144)

      

…discharge: g

Rural areas:

No BCPR: reference

BCPR: 2.56 (1.23–5.32)

DA-CPR: 3.53 (1.84–6.77)

Urban areas:

No BCPR: reference

BCPR: 1.37 (1.18–1.60)

DA-CPR: 1.59 (1.41–1.79)

36.3% (19,343/53,240)

Shibahashi et al., 2019 [45]

   

3.1% (2687 /86,913)c

5.7% (2682 /46,964)c

2.6% (11,660 /448,606)c

   

…one-month:h

No BCPRc: reference

BCPRc: 2.25 (2.15–2.36)

DA-CPRc: 1.30 (1.24–1.36)

14.9% (86,913/582,483)c

Wu et al., 2018 [47]

8.8% (85/963)

12.9% (68/527)

6.6% (48/731)

      

…discharge: i

No BCPR: reference

BCPR: 1.58 (1.05–2.39)

DA-CPR: 1.56 (1.06–2.31)

43.4% (1002/2310)d

  1. BCPR bystander CPR, CI 95% confidence interval, CPC cerebral performance category, CPR cardiopulmonary resuscitation, DA dispatcher assistance, DA-CPR dispatcher assisted CPR, EMS emergency medical services, m number of OHCAs who received DA-CPR, M total number of OHCAs, n number with CPC 1 or 2, N total number of OHCAs, OHCA out-of-hospital cardiac arrest, OR odds ratio
  2. aCPC 1–2 at one-month when DA was offered but bystander didn’t provide CPR: 3.1% (83/2698). CPC 1–2 at one-month in cases where DA was not offered: 3.0% (48/1608)
  3. bNeurologically intact survival at discharge or at day 30 after arrest
  4. c“DA-CPR provided” was defined as CPR initiated by DA. The “bystander CPR provided without DA”-group included 39.1% calls where DA was provided but CPR started prior to DA. The “no bystander CPR”-group included 32.0% calls where DA was given but no bystander CPR was provided
  5. dMissing data on survival, why the numbers in the three survival data columns do not add up to 1002 and 2310 respectively
  6. eAdjusted for: age, sex, etiology of arrest, witness status, shockable rhythm at scene, location of arrest, response time interval, and level of property value of a community
  7. fAdjusted for: age, sex, presumed cardiac etiology, witnessed by a family member, shockable initial rhythm, and call-to-response time
  8. gAdjusted for: age, sex, witnessed status, initial rhythm at scene, location of arrest, EMS response time, and interaction term: bystander CPR x rural/urban location
  9. hAdjusted for: age, sex, presumed cardiac etiology, witnessed status, initial shockable rhythm, call-to-response time, call-to-hospital time, and period of hospital admittance
  10. iAdjusted for: age, sex, witnessed status, location of arrest, EMS arrival time
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Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

ISSN: 1757-7241