Table 3 Subgroup analysis.

From: A cross-sectional National Health and Nutrition Examination survey-based study of the association between systemic immune-inflammation index and blood urea nitrogen levels in United States adolescents

SII

 

β (95% CI)

P for interaction

Gender

0.4915

 Male

N = 2405

− 0.18 (− 2.85, 2.49)

 

 Female

N = 2215

− 1.55 (− 4.43, 1.33)

 

Age (years)

0.8843

 < 17

N = 2953

− 0.37 (− 2.83, 2.08)

 

 ≥ 17

N = 1667

− 0.67 (− 3.84, 2.50)

 

Race (%)

0.4964

 Mexican American

N = 1047

− 0.52 (− 5.87, 4.83)

 

 Other Hispanic

N = 505

1.49 (− 6.32, 9.29)

 

 Non-Hispanic White

N = 1279

− 0.50 (− 3.09, 2.08)

 

 Non-Hispanic Black

N = 1062

2.15 (− 3.49, 7.79)

 

 Other races

N = 727

− 5.25 (− 11.59, 1.10)

 

BMI (Kg/m2)

0.0079

 < 25.5

N = 3058

0.88 (− 1.47, 3.23)

 

 ≥ 25.5

N = 1562

− 4.77 (− 8.24, − 1.30)

 
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