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Table 1 Baseline characteristics of participants with or without severe headache

From: Gender-specific inflammatory burden and headache risk in youth: a NHANES analysis

PAIN

Pain (588)

No pain (1622)

Standardize diff.

P-value

PIR

2.02 ± 1.53

2.23 ± 1.55

0.14 (0.04, 0.23)

0.006

CRP

0.19 ± 0.39

0.17 ± 0.46

0.04 (-0.06, 0.13)

0.458

BMI

24.35 ± 6.15

23.31 ± 5.56

0.18 (0.08, 0.27)

< 0.001

Bone.alkaline.phosphotase ug/l

44.91 ± 37.72

49.52 ± 40.23

0.12 (0.02, 0.21)

0.016

Hemoglobin

13.96 ± 1.47

14.19 ± 1.42

0.16 (0.06, 0.25)

0.001

Neutrophils

3.97 ± 1.72

3.97 ± 1.73

0.00 (-0.09, 0.10)

0.987

WBC Count

7.00 ± 2.07

7.00 ± 2.06

0.00 (-0.09, 0.10)

0.921

HbA1C

5.21 ± 0.57

5.20 ± 0.39

0.01 (-0.08, 0.11)

0.795

Glucose

85.24 ± 13.87

86.95 ± 20.47

0.10 (0.00, 0.19)

0.062

Total Cholesterol

4.30 ± 0.78

4.23 ± 0.82

0.08 (-0.01, 0.18)

0.090

Triglycerides mg/l

89.98 ± 50.10

92.28 ± 73.44

0.04 (-0.06, 0.13)

0.483

LDH

134.79 ± 31.79

136.44 ± 30.21

0.05 (-0.04, 0.15)

0.268

HDL. mg/dl

49.34 ± 11.83

50.01 ± 11.65

0.06 (-0.04, 0.15)

0.234

LDL. mg/dl

166.11 ± 30.14

163.54 ± 31.81

0.08 (-0.01, 0.18)

0.090

Albumin

4.37 ± 0.31

4.42 ± 0.28

0.17 (0.07, 0.26)

< 0.001

Age

  

0.00 (-0.09, 0.09)

0.990

< 18 y

449 (76.36%)

1239 (76.39%)

  

>=18 y

139 (23.64%)

383 (23.61%)

  

Gender

  

0.19 (0.09, 0.28)

< 0.001

male

251 (42.69%)

842 (51.91%)

  

female

337 (57.31%)

780 (48.09%)

  

Education

  

0.03 (-0.07, 0.12)

0.852

Under high school

502 (85.37%)

1386 (85.56%)

  

High school or equivalent

63 (10.71%)

164 (10.12%)

  

Above high school

23 (3.91%)

70 (4.32%)

  

Race

  

0.19 (0.09, 0.28)

0.003

Mexican American

172 (29.25%)

527 (32.49%)

  

Other Hispanic

36 (6.12%)

64 (3.95%)

  

Non-Hispanic White

151 (25.68%)

504 (31.07%)

  

Non-Hispanic Black

206 (35.03%)

467 (28.79%)

  

Other race

23 (3.91%)

60 (3.70%)

  

Activity

  

0.14 (0.01, 0.27)

0.222

Light activity

72 (23.08%)

152 (19.31%)

  

Moderate activity

154 (49.36%)

411 (52.22%)

  

Vigorous activity

72 (23.08%)

169 (21.47%)

  

Light activity

14 (4.49%)

55 (6.99%)

  

IBI quartile

  

0.15 (0.05, 0.24)

0.027

Q1

129 (21.94%)

422 (26.02%)

  

Q2

151 (25.68%)

403 (24.85%)

  

Q3

137 (23.30%)

415 (25.59%)

  

Q4

171 (29.08%)

382 (23.55%)

  
  1. All values are presented as mean ± SD or as counts (weighted, proportion)
  2. PIR: poverty income ratio; HbA1C: hemoglobin type A1C; WBC: white blood count; IBI: inflammatory burden index. LDH: lactate dehydrogenase; HDL: high-density lipoprotein; LDL: low-density lipoprotein