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Table 6 Adjusted mean (standard error) for the Physical and Mental Health Component Summary Scores for the number of social groups, stratified by gender

From: Positive and negative influences of social participation on physical and mental health among community-dwelling elderly aged 65–70 years: a cross-sectional study in Japan

  Males P a Females P a Interaction
N Mean (SE)      N Mean (SE)        
Physical Health Component Summary Score
 None 1,680 46.31 (0.22) * * * 0.002 1,825 45.70 (0.22) * * *    <0.001 p = 0.080
 1 1,428 47.02 (0.24) *     1,848 46.32 (0.23) *    *    
 2 959 47.08 (0.27)   *    1,470 46.53 (0.25)   *    *   
 ≥3 1,059 47.11 (0.28)    *   1,863 47.24 (0.25)    * * *   
Mental Health Component Summary Score
 None 1,680 48.18 (0.19) *    0.024 1,825 47.26 (0.20) * * *    <0.001 p = 0.038
 1 1,428 48.75 (0.21) *     1,848 47.82 (0.21) *    *    
 2 959 48.30 (0.24)      1,470 48.10 (0.22)   *      
 ≥3 1,059 48.57 (0.24)      1,863 48.34 (0.22)    * *    
  1. The data in this table are adjusted for age, family size, BMI, comorbidities, smoking, alcohol intake, depression and cognitive functioning
  2. aThis is by use of an analysis of covariance (ANCOVA) for differences in mean scores
  3. * P<0.05 with the Bonferroni correction method