Table 4 Subgroup analysis for the association between SII and Stroke.

From: Association between the systemic immunity-inflammation index and stroke: a population-based study from NHANES (2015–2020)

SII/100

Stroke [OR (95% CI)]

P for interaction

Gender

 

0.0968

Men

1.00 (0.97, 1.04)

 

Women

1.04 (1.01, 1.06)

 

Age

 

0.1031

<60years

1.05 (1.02, 1.09)

 

≥ 60years

1.02 (1.00, 1.04)

 

Race/Ethnicity

 

0.7952

Mexican American

1.03 (0.98, 1.09)

 

Other Hispanic

1.05 (0.98, 1.13)

 

Non-Hispanic White

1.02 (0.99, 1.05)

 

Non-Hispanic Black

1.01 (0.98, 1.05)

 

Other Race

1.05 (1.00, 1.10)

 

Education

 

0.1106

Less than high school

1.02 (0.99, 1.05)

 

High school

1.00 (0.96, 1.03)

 

More than high school

1.04 (1.02, 1.07)

 

Smoked at least 100 cigarettes

 

0.1759

Yes

1.02 (1.00, 1.04)

 

No

1.04 (1.01, 1.08)

 

High blood pressure

 

0.2505

Yes

1.03 (1.01, 1.05)

 

No

1.01 (0.97, 1.04)

 

Diabetes

 

0.8291

Yes

1.03 (1.00, 1.06)

 

No

1.02 (1.00, 1.04)

 

Coronary heart disease

 

0.2735

Yes

1.05 (1.00, 1.09)

 

No

1.02 (1.00, 1.04)

 
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