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Table 2 Comparisons of all-cause mortality according to baseline cognitive status and one-year transition in cognitive status

From: Cognitive function and its transitions in predicting all-cause mortality among urban community-dwelling older adults

VariablesNDeathsPerson- yearsIncidence rateAge and sex -adjustedMultivariate-adjustedaMultivariate-adjustedb
HR (95% CI)HR (95% CI)HR (95% CI)
Baseline MMSE score    0.91 (0.88, 0.94)***0.91 (0.88, 0.94)***0.93 (0.90, 0.97)***
Baseline cognitive status
 Normal7791085244.4020.591.001.001.00
 Impaired14252849.3461.222.60 (1.81, 3.73) ***2.53 (1.76, 3.65)***2.08 (1.43, 3.01)***
 Total9211606093.7426.26   
One-year transition in cognitive status
 Normal-normal393312368.3713.091.001.001.00
 Normal-impaired559315.7328.512.19 (1.02, 4.71)*2.36 (1.07, 5.19)*2.01 (0.88, 4.59)
 Impaired-normal319168.3653.463.27 (1.51, 7.09)**3.60 (1.64, 7.90)**2.87 (1.25, 6.56)*
 Impaired-impaired3813196.4166.194.83 (2.29, 10.15)**5.26 (2.45, 11.32)***3.79 (1.64, 8.73)**
  1. *: p < 0.05; **: p < 0.01; ***: p < 0.001
  2. Incidence rate (number of incident cases) / (1000 person-years), HR Hazard ratio, CI Confidence interval
  3. aMultivariate adjustment for age, sex, education, marital status, BMI, smoking, alcohol drinking, physical activity and exercising program
  4. bMultivariate adjustment for age, sex, education, marital status, BMI, smoking, alcohol drinking, physical activity, exercising program, hypertension, diabetes mellitus, heart disease, hyperlipidemia, gout, hyperuricemia, arthritis, osteoporosis, stroke, cataract, cancer, fall history, sleep disturbance and frailty