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Table 3 Results of fully adjusted multilevel models for comparing differences in episodic memory trajectories by HRB clustering and country among mena

From: Comparing relationships between health-related behaviour clustering and episodic memory trajectories in the United States of America and England: a longitudinal study

Fixed effects England (N = 3769) versus USA (N = 5730)
b (95%CI) P-value
Intercept 11.41 (11.20, 11.63)  < 0.001
Age -0.09 (-0.10, -0.08)  < 0.001
Age2 -0.0041 (-0.0045, -0.0036)  < 0.001
HRB clustering
 Multi-HRB Reference  
 Inactive cluster -0.27 (-0.42, -0.11) 0.001
Interactions: HRB clustering x age
 Inactive cluster 0.01 (-0.001, 0.03) 0.066
Country
 England versus the USA: multi-HRB 1.29 (1.11, 1.48)  < 0.001
Interaction: HRB clustering x country
 England versus the USA: (inactive cluster vs multi-HRB cluster) -0.56 (-0.85, -0.27)  < 0.001
Interaction: HRB clustering x country x age
 England versus the USA: multi-HRB cluster -0.05 (-0.06, -0.03)  < 0.001
 England versus the USA: inactive cluster -0.07 (-0.09, -0.05)  < 0.001
Random effects S.D. (95%CIs)  
Level 1: residual 2.26 (2.24, 2.28)  
Level 2: intercept 2.03 (1.99, 2.08)  
Level 2: age 0.05 (0.03, 0.06)  
  1. a The model with a quadratic trend over age was adjusted for birth cohort, marital status, education, wealth, long-term conditions, country, and interactions between age and HRB clustering, age and country, as well as among age, HRB clustering and country.
  2. 95%CI 95% Confidence interval