Table 4 Comparisons of laboratory parameters between drug groups at baseline or at the time of critical values.

From: Identification and characterization of critical values in therapeutic drug monitoring: a retrospective analysis

Ā 

Vancomycin (n = 99)

Digoxin (n = 25)

Tacrolimus (n = 35)

PĀ value #

WBC (× 109/L)

Ā Baseline

9.600 (0.7–44.3)

7.2 (4.2–35.2)

6.5 (1.3–21.8)

0.289

Ā Critical value

8.600 (1.2–38.6)

11.1 (5.6–22.1)

8.0 (0.7–19.4)

0.818

N (%)

Ā Baseline

80.7 (24–97.2)

79.5 (62–92.4)

70.2 (28.9–98.4)

0.082

Ā Critical value

81.9 (42.6–95.7)

82.5 (65.7–91.8)

88.6 (43.5–96.9)

0.371

L (%)

Ā Baseline

12.50 (1.1–51.9)

12.2 (1.2–29.8)

16.6 (0.7–62.6)

0.033*

Ā Critical value

10.10 (1–41.1)

10.4 (3.2–22.3)

8.25 (0.5–2.6)

0.711

Hb (g/L)

Ā Baseline

106.0 (25–192)

106.0 (71–204)

98.0 (45–147)

0.371

Ā Critical value

82.0 (47–140)

79.0 (55–174)

84.0 (42–135)

0.207

PLT (× 1012/L)

Ā Baseline

174.0 (23–614)

170.0 (73–898)

211.0 (18–526)

0.579

Ā Critical value

166.0 (2–565)

140.0 (47–1120)

126.0 (12–508)

0.455

TB (mg/L)

Ā Baseline

14.6 (3.3–405.8)

17.4 (8.7–91.8)

13.1 (4.1–373.4)

0.576

Ā Critical value

18.6 (11.3–540.6)

31.3 (9.4–276.8)

15.5 (4.2–368.2)

0.894

TP (g/dL)

Ā Baseline

63.15 (26.3–88.6)

63.30 (48.2–43.7)

61.1 (40.3–79.9)

0.932

Ā Critical value

59.8 (28.9–79.1)

60.9 (47.6–73.5)

62.2 (30.3–70.1)

0.529

ALB (g/dL)

Ā Baseline

32.50 (14–49.7)

32.70 (24.2–42.9)

33.35 (22.0–42.8)

0.795

Ā Critical value

32.95 (16.4–47.2)

33.00 (28.1–38.8)

35.2 (18.6–44.7)

0.742

ALT (IU/L)

Ā Baseline

29.00 (3–2230)

22.00 (3–106)

31.00 (9–1497)

0.614

Ā Critical value

34.0 (1–1982)

26.5 (8–209)

32.0 (9–595)

0.609

AST (IU/L)

Ā Baseline

29.00 (5–4480)

37.00 (8–474)

36.00 (13–1802)

0.844

Ā Critical value

41.0 (9–2280)

43.0 (19–305)

38.0 (13–787)

0.748

BUN

Ā Baseline

6.820 (1.3–59.6)

10.82 (4.3–33.1)

8.2 (1.3–17.7)

0.072

Ā Critical value

8.54 (1.4–36.9)

18.22 (7.6–35.3)

10.65 (2.7–34.1)

0.002

Cr

Ā Baseline

75.00 (10–1476)

161.0 (38–850)

84.5 (15–780)

0.446

Ā Critical value

81.5 (5–805)

161.5 (75–785)

87.5 (12–540)

0.007

CRP

Ā Baseline

48.76 (0.7–314.6)

14.6 (4–252.1)

11.5 (1.6–208.)

0.144

Ā Critical value

55.65 (4.4–293.3)

47.0 (5.5–126)

49.50 (5.3–34.9)

0.256

PCT

Ā Baseline

0.5 (0–88.2)

0.4 (0.1–58.0)

0.2 (0–78.4)

0.993

Ā Critical value

1.450 (0.1–93.1)

2.97 (0.2–19.4)

1.170 (0.1–75.2)

0.856

NTproBNP

Ā Baseline

1477 (32–20,518)

12,577 (466–35,000)

1923 (15–17,022)

< 0.001*

Ā Critical value

2104 (27–50,852)

11,824 (4927–35,000)

3780 (206–34,475)

0.005*

  1. WBC, white blood cell; Hb, hemoglobin; PLT, platelet; N, neutrophil; L, lymphocyte; TB, total bilirubin; TP, total protein; ALB, albumin; ALT, alanine aminotransferase; AST, aspartate aminotransferase; BUN, blood urea nitrogen; Cr, creatinine; CRP, C-reactive protein; PCT, procalcitonin; NTproBNP, N-terminal pro B-type Natriuretic Peptide. #P values were derived from comparison of multiple drug groups using one-way ANOVA analysis. *P < 0.05 considered statistically significant.