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Table 1 Demographic, clinical characteristics, and fluid use in the study periods

From: Association between the use of balanced fluids and outcomes in critically ill children: a before and after study

Demographics

Pre-intervention

(n = 1483)

Post-intervention

(n = 1,380)

p value

Female n (%)

791 (47%)

727 (47%)

0.7

Age (years)

3.2 (1.2–10.4)

3.3 (1–10.4)

0.2

Weight (kg)

14.5 (9.5–30)

14 (8.7–29.9)

0.3

PRISM III

3 (0–7)

3 (0–7)

0.7

Admission source n (%)

0.2

Emergency department

546 (36.8%)

473 (34.3%)

Inpatient

236 (15.9%)

260 (18.8%)

Operating room

215 (14.5%)

189 (13.7%)

Outside hospital

486 (32.8%)

458 (33.2%)

Primary diagnosis category

0.06

Respiratory

825 (55.6%)

806 (58.4%)

Infectious

152 (10.3%)

139 (10.1%)

Gastrointestinal

40 (2.7%)

54 (3.9%)

Ingestion

65 (4.4%)

40 (2.9%)

Cardiovascular

37 (2.5%)

34 (2.5%)

Endocrine

67 (4.5%)

43 (3.1%)

Oncologic

85 (5.7%)

74 (5.4%)

Neurologic

145 (9.8%)

122 (8.8%)

Orthopedic

35 (2.4%)

21 (1.5%)

Trauma

16 (1.1%)

27 (2%)

Renal

16 (1.1%)

20 (1.5%)

Immunocompromised n (%)

170 (11%)

147 (11%)

0.5

Mechanical ventilation n (%)

32% (474)

37% (510)

0.005

Septic shock n (%)

7% (104)

7% (92)

0.7

Chloride content of maintenance and resuscitation combined

 < 0.0001

Hypochloremic (< 98 mmol/L)

126 (10%)

139 (11%)

Normochloremic (98–109 mmol/L)

45 (3.6%)

591 (46.8%)

Hyperchloremic (> 110 mmol/L)

1087 (86.4%)

532 (41.2%)

Chloride load from resuscitation days 1–3 (mmol/kg)

3.0 (2.2–4.2)

(n = 220)

2.0 (1.9–3.1)

(n = 309)

 < 0.0001

Chloride load from maintenance days 1–3 (mmol/kg)

13.5 (4.4–24.5)

10.9 (4.5–18.8)

 < 0.0001

Resuscitation fluid type by patient

(n = 220)

(n = 309)

 < 0.0001

0.9% Saline

110 (50%)

25 (8%)

Plasma-Lyte

0 (0%)

271 (88%)

Lactated Ringers

88 (40%)

4 (1%)

Combination/Other

22 (10%)

9 (3%)

Maintenance Fluid Type per Patient

(n = 1253)

(n = 1255)

 < 0.0001

0.45% Saline

26 (2%)

19 (1.5%)

0.675% Saline

3 (0.2%)

35 (3%)

0.9% Saline

83 (7%)

69 (6%)

0.9% + 20 mEq KCl

633 (51%)

62 (5%)

Plasma-Lyte

6 (0.5%)

13 (1%)

Lactated Ringers

8 (0.6%)

478 (38%)

Lactated Ringers + 20 mEq KCl

4 (0.3%)

8 (0.6%)

Combination/Other

490 (39%)

571 (46%)

  1. The transition from standard fluid practice to the suggested use of Plasma-Lyte as the standard resuscitation fluid and Lactated Ringers as the standard maintenance fluid occurred in June 2019. The pre-intervention time-period era took place from May 2018 to April 2019 and the post-intervention time-period took place from August 2019 to March 2020. Septic shock was defined as the presence of a known infection or concern for an infection and the use of vasoactive medications. Fluid type per patient was estimated by the fluid-adjusted chloride load. This was calculated by the chloride load in mmol per kilogram divided by the fluid administered in liters per kilogram.