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Table 1 Characteristics of the 45 and Up Study sample and association of variables with SMC, N = 45, 532

From: Subjective memory complaints, vascular risk factors and psychological distress in the middle-aged: a cross-sectional study

  Total SMC
(n, column %)
No SMC
(n, column %)
Odds ratio (95% CI)
N 45, 532 5, 479 (12.0%) 40, 053 (88.0%)  
Demographics     
   Age
-45 to 49 years 9, 582 1, 152 (21.0%) 8, 430 (21.0%) 1.00
-50 to 54 years 12, 237 1, 441 (26.3%) 10, 796 (27.0%) 0.98 (0.90 - 1.06)
-55 to 59 years 12, 712 1, 510 (27.6%) 11, 202 (28.0%) 0.99 (0.91 - 1.07)
-60 to 64 years 11, 001 1, 376 (25.1%) 9, 625 (24.0%) 1.05 (0.96 - 1.14)
   Gender
-Male 20, 606 2, 674 (48.8%) 17, 932 (44.8%) 1.18 (1.11 - 1.24)*
-Female 24, 926 2, 805 (51.2%) 22, 121 (55.2%)  
   Education
-High 13, 743 1, 071 (19.5%) 12, 672 (31.6%) 1.00
-Medium 19, 856 2, 462 (44.9%) 17, 394 (43.4%) 1.68 (1.55 - 1.81)*
-Low 11, 933 1, 946 (35.5%) 9, 987 (24.9%) 2.31 (2.13 - 2.50)*
Vascular risk factors     
   Obesity 10, 147 1, 306 (23.8%) 8, 841 (22.1%) 1.11 (1.03 - 1.18)
-non-obesity 35, 385 4, 173 (76.2%) 31, 212 (77.9%)  
   Diabetes 2, 475 379 (6.9%) 2, 096 (5.2%) 1.35 (1.20 - 1.51)*
-no diabetes 43, 057 5, 100 (93.1%) 37, 957 (94.8%)  
   Current smoker 3, 928 607 (11.1%) 3, 321 (8.3%) 1.38 (1.26 - 1.51)*
-non-smoker 41, 604 4, 872 (88.9%) 36, 732 (91.7%)  
   Treatment for hypertension 7, 338 928 (16.9%) 6, 410 (16.0%) 1.07 (0.99 - 1.15)
-no treatment for hypertension 38, 194 4, 551 (83.1%) 33, 643 (84.0%)  
   Treatment for hypercholesterolaemia 4, 892 692 (12.6%) 4, 200 (10.5%) 1.23 (1.13 - 1.35)*
-no treatment for hypercholesterolaemia 40, 640 4, 787 (87.4%) 35, 853 (89.5%)  
Psychological distress     
   K10-low level of distress 35, 713 3, 139 (57.3%) 32, 574 (81.3%) 1.00
- moderate level of distress 9, 344 2, 138 (39.0%) 7, 206 (18.0%) 3.08 (2.90 - 3.27)*
- severe level of distress 475 202 (3.7%) 273 (0.7%) 7.68 (6.38 - 9.24)*
  1. Note: * p < 0.001.