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Table 2 Delphi survey items by round 2 scores from the combined stakeholder group and status prior to the consensus meeting

From: Development of a core outcome set for the evaluation of interventions to prevent COVID-19 in care homes (COS-COVID-PCARE Study)

Outcome item

Domain

Score 1–3 n (%)

Score 4–6 n (%)

Score 7–9 n (%)

Decision

COVID-19 infection

Infection

0

2 (5)

38 (93)

Consensus in

COVID-19 infection with symptoms

Infection

0

2 (5)

38 (93)

Consensus in

COVID-19 infection with no symptoms

Infection

2 (5)

1 (2)

37 (91)

Consensus in

Immunity against COVID-19

Other

0

3 (7)

36 (88)

Consensus in

Uptake of vaccination

Other

0

3 (7)

36 (88)

Consensus in

COVID-19 related death

Mortality

2 (5)

4 (9)

35 (86)

Consensus in

Recovery from COVID-19 infection

Severity of illness

2 (5)

5 (12)

34 (83)

Consensus in

Feasibility of the interventiona

Other

0

5 (12)

32 (78)

Consensus in

Hospitalisation

Severity of illness

1 (2)

6 (15)

33 (81)

Consensus in

Staff knowledge and awareness about infection controla

Other

1 (2)

6 (15)

32 (78)

Consensus in

COVID-19 negative

Infection

0

7 (17)

34 (83)

Consensus in

Admission to Intensive Care Unit (ICU)

Severity of illness

2 (5)

7 (17)

32 (78)

Consensus in

Compliance with infection prevention guidance

Other

0

7 (17)

32 (78)

Consensus in

Mental health effects from the intervention

Other

0

8 (19)

32 (78)

Consensus in

Side effects or safety concerns

Other

0

7 (17)

31 (76)

Consensus in

Acceptability of the interventiona

Other

0

8 (19)

29 (71)

Consensus in not reached in all stakeholder groups

Quality of life and well-beinga

Other

0

8 (19)

31 (76)

Consensus in

Condition getting betterb

Severity of illness

2 (5)

9 (22)

30 (74)

Consensus in

Condition getting worseb

Severity of illness

2 (5)

9 (22)

30 (74)

Consensus in not reached in all stakeholder groups

Needing treatment with oxygen

Severity of illness

1 (2)

9 (22)

30 (74)

Consensus in

Staff knowledge and awareness about vaccinesa

Other

2 (5)

9 (22)

29 (71)

Consensus in

Organs not functioning as well as expected

Severity of illness

3 (7)

9 (22)

29 (71)

Consensus in

Reduced blood oxygen levels

Severity of illness

2 (5)

9 (22)

28 (68)

Consensus in

Ability for residents to receive visits in the care home and/or for residents to make visits out of the homea

Other

1 (2)

12 (30)

27 (66)

No consensus

Impact on wider community transmission of COVID-19a

Other

5 (12)

9 (22)

25 (61)

No consensus

Non-COVID-19 related death

Mortality

4 (10)

13 (32)

24 (59)

No consensus

Decline in cognitive function (not due to COVID-19 illness)a

Other

1 (2)

13 (22)

22 (54)

No consensus

Change in ability to engage in usual activities (not due to COVID-19 illness)a

Other

1 (2)

16 (39)

22 (54)

No consensus

Inflammatory response

Other

2 (5)

17 (42)

16 (39)

Consensus out not reached in all stakeholder groups

Mental health getting worse

Severity of illness

1 (2)

20 (49)

17 (42)

Consensus out not reached in all stakeholder groups

Access to allied health professionalsa

Other

4 (10)

18 (44)

15 (37)

Consensus out

Decline in ability to engage in usual activities due to COVID-19 illness

Severity of illness

1 (2)

20 (49)

15 (37)

Consensus out

Reduced appetite or fluid intake

Other

1 (2)

23 (56)

14 (36)

Consensus out

Other secondary infections

Infection

1 (2)

26 (63)

11 (27)

Consensus out

Needing to consult a General Practitioner (GP)

Severity of illness

4 (10)

22 (54)

11 (27)

Consensus out

  1. % of participants who registered and provided full or partial data in round 2 (n = 41)
  2. adenotes additional item proposed by participants during Delphi survey
  3. bCOVID-19 condition