1. NHANES 2009–2018 analysis of 3,729 women examined obesity measures, inflammation, and asthma.
2. Higher body mass index, body roundness index, and white blood cell counts increased asthma odds.
3. Threshold effects: BMI above 25.3, BRI above 3.84, and WBC above 4.8 × 10⁹/L showed stronger associations.
4. Women in the highest BRI quartile had nearly double the odds of asthma.
5. Mediation analysis: white blood cells explained 9–11% of the obesity–asthma relationship.
6. Study limits: cross-sectional design, self-reported asthma, and restriction to U.S. women.

Source: BMC Pulmonary Medicine