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Table 2 Result of 3-level Nested ANOVA and summary of statistical description for 26 biochemical analytes according to day age

From: Reference intervals for 26 common biochemical analytes in term neonates in Jilin Province, China

Analytes

3-level Nested ANOVA

Day 1

Day 2

Day 3

Total

SDR-dm

SDR-sex

SDR-age

median

IQR

median

IQR

median

IQR

median

IQR

CO2, mmol/L

0.221

0.000

0.100

24

22-25

21

20-23

21

19-25

22

20-24

Cl, mmol/L

0.222

0.000

0.319

101

95-104

103

100-104

102

97-105

102

98-104

K, mmol/L

0.431

0.000

0.231

3.9

3.6-4.3

4.0

3.7-4.3

4.2

3.8-4.5

4.0

3.7-4.4

Na, mmol/L

0.000

0.000

0.021

135

133-136

135

133-137

135

133-136

135

133-137

Ca, mmol/L

0.285

0.000

0.000

1.97

1.88-2.01

1.92

1.83-2.03

1.96

1.81-2.04

1.95

1.83-2.03

Mg, mmol/L

0.264

0.000

0.323

0.77

0.76-0.80

0.80

0.76-0.84

0.80

0.78-0.87

0.80

0.76-0.84

P, mmol/L

0.673

0.139

0.091

2.11

1.85-2.36

2.28

2.10-2.43

2.18

2.07-2.39

2.25

2.07-2.42

Fe, μmol/L

0.151

0.000

0.411

8.4

7.1-9.4

9.4

8.3-11.0

10.6

8.7-12.8

9.6

8.3-11.3

TIBC, μmol/L

0.278

0.000

0.000

42.0

40.0-44.4

40.4

37.8-43.0

39.9

37.2-43.7

40.5

37.7-43.3

BUN, mmol/L

0.580

0.000

0.519

2.53

1.75-3.14

1.65

1.14-2.25

1.08

0.78-1.63

1.57

1.05-2.15

Cr, μmol/L

0.121

0.000

0.670

61

52-67

52

48-60

46

42-52

51

45-60

UA, μmol/L

0.000

0.000

0.675

278

183-308

209

164-244

146

130-189

186

145-241

ALT, U/L

0.164

0.000

0.000

30

27-32

30

22-35

31

25-34

30

24-34

ALP, U/L

0.096

0.228

0.000

143

129-155

150

123-167

156

141-172

151

127-168

AST, U/L

0.000

0.272

0.180

56

52-83

52

44-63

52

42-63

53

44-63

CHE, U/L

0.325

0.000

0.167

4326

4060-4983

4266

3871-4696

4272

4069-4458

4279

3897-4655

GGT, U/L

0.000

0.000

0.000

133

91-169

129

86-169

113

88-142

122

86-169

CK, U/L

0.000

0.213

0.251

412

297-470

318

233-414

238

157-382

304

203-415

CK-MB, U/L

0.066

0.116

0.000

22

18-26

24

18-30

22

18-29

23

18-30

LDH, U/L

0.000

0.146

0.246

1247

972-1330

1149

1022-1270

1039

928-1230

1120

985-1285

Alb, g/L

0.263

0.215

0.116

33.7

30.8-36.3

32.7

30.8-34.3

32.3

30.3-34.7

32.7

30.7-34.7

TP, g/L

0.314

0.190

0.000

47.1

45.6-50.8

48.0

45.5-52.0

49.6

45.6-52.2

48.2

45.5-52.1

HDL-C, mmol/L

0.117

0.000

0.315

0.62

0.55-0.80

0.67

0.58-0.81

0.71

0.59-0.83

0.68

0.58-0.82

LDL-C, mmol/L

0.000

0.000

0.319

0.56

0.51-0.80

0.57

0.45-0.80

0.90

0.56-1.15

0.63

0.48-0.91

TCHO, mmol/L

0.125

0.000

0.618

1.57

1.29-1.85

1.60

1.38-1.92

2.08

1.65-2.39

1.73

1.39-2.05

TG, mmol/L

0.000

0.000

0.517

0.64

0.56-0.77

0.70

0.58-0.86

1.02

0.77-1.26

0.74

0.58-0.95

  1. SDR ≥ 0.4 was used as a criterion for partition of reference values
  2. SDR standard deviation ratio, SDR-dm SDR for between-delivery-mode differences, SDR-sex SDR for between-sex differences, SDR-age SDR for between-day-age differences, IQR, interquartile range