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Table 2 Adjusted hazard ratios for effect of covariates on 15-year survival

From: Lower age at menarche affects survival in older Australian women: results from the Australian Longitudinal Study of Ageing

Variable HRa 95% CIb
Age group   
   65 - 69 1.00  
   70 - 74 1.62 1.10 - 2.38
   75 - 79 3.43 2.35 - 5.00
   80 - 84 5.73 3.86 - 8.50
   ≥ 85 9.08 6.02 - 13.70
Dwelling   
   Community 1.00  
   Residential aged care 1.91 1.41 - 2.57
Self rated health   
   Excellent/very good 1.00  
   Good 1.40 1.14 - 1.72
   Fair/poor 1.42 1.15 - 1.77
Number of morbid conditions 1.06 1.01 - 1.11
Cognitive impairment   
   No 1.00  
   Yes 1.58 1.25 - 1.99
Smoking status   
   Never 1.00  
   Former 1.25 1.02 - 1.54
   Current 2.02 1.50 - 2.71
Sedentary   
   No 1.00  
   Yes 1.31 1.10 - 1.56
Body Mass Index (kg/m2)   
   20 - 25 1.00  
   < 20 0.93 0.60 - 1.44
   > 25 0.93 0.75 - 1.14
   Missing 1.09 0.87 - 1.36
Parity   
   Nulliparous 1.00  
   > 0 0.87 0.69 - 1.09
Age at menopause   
   ≤ 44 1.01 0.72 - 1.43
   45 - 49 1.10 0.83 - 1.40
   50 - 54 1.00  
   ≥ 55 0.74 0.53 - 1.04
   Surgical 0.98 0.76 - 1.27
Reproductive years   
   ≤ 30 1.00  
   31-39 0.99 0.72 - 1.38
   ≥40 0.99 0.69 - 1.42
  1. a: Hazard Ratios adjusted for other covariates
  2. b: 95% confidence interval