C-reactive protein and white blood cell are associated with frailty progression: a longitudinal study

Immunity & Ageing

Table 3 β (95%CIs) of the associations of C-reactive protein and white blood cell with frailty progression stratified by age

Q1 as the lowest quartile and Q4 as the highest quartile. CRP and WBC as continuous variables were log transformed
In < 60 years, age range was 45–59 years, and CRP quartile categories at baseline were as follows: < 0.50, 0.50–0.89, 0.90–1.79, 1.80–10.00 mg/L; WBC quartile categories at baseline were as follows: 4.0–5.0, 5.1–5.9, 6.0–7.0, 7.1–10.0 10⁹/L
In ≥60 years, age range was 60–95 years, and CRP quartile categories at baseline were as follows: < 0.61, 0.61–1.10, 1.11–2.15,2.16–10.00 mg/L; WBC quartile categories at baseline were as follows: 4.0–5.0, 5.1–5.9, 6.0–6.9, 7.0–10.0 10⁹/L
β (95% CI) was calculated by linear mixed-effect models and presented as multiply by 10². Model 1: adjusted for age, sex, education level, marital status, smoking status, drinking status, residence, and body mass index; Model 2: additionally adjusted for frailty index at baseline
CRP C-reactive protein, WBC white blood cell

ISSN: 1742-4933