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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