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Table 1 General characteristics of age difference between husband and wife at baseline (2006)

From: The impact of age differences in couples on depressive symptoms: evidence from the Korean longitudinal study of aging (2006–2012)

  Total Husband  
  N % %* Mean Mean* SD* P-value
Huseband-Wife       <.0001***
≤ −3 62 2.15 2.17 0.79 0.99 1.29  
−2 ~ −1 145 5.03 5.10 0.25 0.27 0.57  
0 251 8.71 8.88 0.22 0.22 0.60  
+1 ~ +2 623 21.62 21.05 0.20 0.18 0.63  
+3 ~ +4 748 25.96 26.16 0.25 0.24 0.67  
+5 ~ +6 533 18.50 18.52 0.20 0.19 0.60  
≥ +7 519 18.01 18.12 0.32 0.32 0.77  
Age        0.057
≤55 898 31.17 33.84 0.16 0.19 0.53  
56-65 957 33.22 36.18 0.22 0.23 0.63  
66-75 785 27.25 23.86 0.32 0.29 0.76  
≥75 241 8.37 6.12 0.50 0.51 0.98  
Education        0.188
≤ Middle school 1,522 52.83 50.99 0.34 0.33 0.83  
High school 886 30.75 32.22 0.17 0.18 0.45  
≥ College 473 16.42 16.78 0.12 0.14 0.44  
Income        0.104
Yes 836 29.02 31.20 0.19 0.22 0.64  
No 2,045 70.98 68.80 0.28 0.26 0.70  
Number of familiarity        0.029*
Every day 958 33.25 31.66 0.22 0.21 0.60  
Sometimes 1,675 58.14 59.27 0.24 0.23 0.71  
Never 248 8.61 9.07 0.48 0.46 0.77  
Smoking status        0.024*
Never 1,127 39.12 38.88 0.23 0.21 0.67  
Former smoker 703 24.40 23.56 0.31 0.34 0.79  
Smoker 1,051 36.48 37.56 0.24 0.24 0.62  
Alcohol use        0.103
No 696 24.16 23.01 0.24 0.22 0.69  
Former user 386 13.40 12.63 0.42 0.42 0.98  
Yes 1,799 62.44 64.36 0.22 0.23 0.60  
Economic activity        0.127
Yes 1,703 59.11 62.47 0.18 0.19 0.60  
No 1,178 40.89 37.53 0.36 0.34 0.78  
Self-rated health        <.0001***
Good 1,470 51.02 53.24 0.11 0.12 0.45  
Normal 880 30.54 29.19 0.29 0.30 0.68  
Bad 531 18.43 17.58 0.57 0.54 1.02  
Depression of partner        <.0001***
Yes 792 27.49 26.42 0.64 0.67 0.99  
No 2,089 72.51 73.58 0.10 0.10 0.44  
Marital satisfaction        0.630
Low 83 2.88 2.79 0.49 0.52 0.57  
Middle 1,341 46.55 46.96 0.29 0.28 0.76  
High 1,457 50.57 50.25 0.20 0.21 0.60  
Total 2,881 100.00 100.00 0.25 0.25 0.68  
  1. *p < .05; **p < .01, ***p < .001.