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Table 5 Analysis of threshold and saturation effects between SA and FEV1%pred stratified by gender

From: Association between serum albumin and pulmonary function in adolescents: analyses of NHANES 2007–2012

Outcomes

B (95% CI)P-value

Male

  

Breakpoint (k)

 

4.9

< k-segment effect 1

 

8.68(5.57, 11.78) < 0.0001

> k-segment effect 2

 

-0.73(-12.41, 10.95)0.9026

Log likelihood ratio

 

0.143

Female

  

Breakpoint (k)

 

4.5

< k-segment effect 1

 

5.93(2.73, 9.13)0.0003

> k-segment effect 2

 

-3.43(-9.70, 2.84)0.2841

Log likelihood ratio

 

0.015

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BMC Pulmonary Medicine

ISSN: 1471-2466

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