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Table 2 Relationship between ICU and patient nutritional variables and energy and protein deficit

From: Nutrition support practices in critically ill head-injured patients: a global perspective

 

Energy deficit (kcal/d)

Protein deficit (g/d)

Mean

Standard deviation

p

Mean

Standard deviation

p

Bedside feeding protocol

Yes

788

528

0.223

45.2

30.2

0.129

No

877

518

52.0

30.0

Bedside feeding protocol includes gastric residual volumes

Yes

783

532

0.094

44.7

30.0

0.038

No

878

505

52.6

30.4

Bedside feeding protocol includes motility agents

Yes

732

507

<.001

42.1

29.3

<.001

No

930

539

54.1

30.5

Bedside feeding protocol includes small bowel feeding

Yes

720

507

<.001

41.0

29.0

0.001

No

883

535

51.6

30.5

Bedside feeding protocol includes withholding for procedures

Yes

755

543

0.076

42.1

29.9

0.008

No

844

511

50.1

30.1

Bedside feeding protocol includes head of bed elevation

Yes

791

529

0.547

46.1

31.5

0.969

No

827

524

47.1

27.6

Dietician working in the ICU

No dietician

658

524

0.027*

29.9

26.1

<.001^

<1 FTE

844

539

48.6

29.5

≥1 FTE

820

505

51.3

30.6

Timing of initiation of EN

By day 1

512

431

<.001 #

31.3

23.6

<.001 #

Day 2–4

811

465

47.8

29.0

After day 4

1167

551

62.5

31.3

Nutritional support route

EN only

734

468

0.023 +

44.4

28.2

<.001 +

PN only

624

215

26.7

25.6

EN + PN

602

524

31.6

30.3

Formula density (patients with >75 % of days at one density)

≤1 kcal/ml

728

453

0.011 π

41.9

27.7

0.006 π

>1– < 2 kcal/ml

816

540

48.7

30.6

≥2 kcal/ml

586

491

47.0

34.9

  1. *None significantly different from <1 full-time equivalent dietician (FTE). ^None significantly different from both <1 FTE and ≥1 FTE. #All groups significantly different to all others. +Enteral nutrition + parental nutrition (EN + PN) significantly different from EN only. π ≤ 1 kcal/ml’ significantly different from > 1– < 2 kcal/ml. Significant p-values denoted in bold text