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Table 6 Adjusted risk for all statistically significant factors for all-cause mortality excluding breast cancer death

From: Predictors of competing mortality to invasive breast cancer incidence in the Canadian National Breast Screening study

Variable Parameter Estimate HR (95% CI) P-value
Age at entry 0.11115 1.12 (1.10-1.13) <.0001
Length of estrogen/progesterone used (months) −0.00285 0.997 (0.995-0.999) 0.0019
Menstruation length (years) −0.01088 0.989 (0.979-1.000) 0.0458
Had a hysterectomy (Ref*: No)
Had a hysterectomy (Ref*: No)
   
Yes 0.19090 1.21 (1.04-1.41) 0.0153
Number of live births (Ref: 1–2)    0.0282
Nulliparous −0.00203 0.998 (0.810-1.230) 0.9848
3-4 −0.17410   0.0300
> = 5 −0.27340 0.84 (0.72-0.98)
0.76 (0.61-0.95)
0.0180
Breast self examination (BSE) practise (Ref: No)    
Yes −0.18797 0.83 (0.73-0.94) 0.0048
Cigarettes smoked per day (Ref: 0 per day)    <.0001
Occasionally 0.18753 1.21 (0.76-1.91)  
1-5 per day 0.11747 1.13 (0.86-1.48) 0.4257
6-10 per day 0.04960 1.05(0.82-1.35) 0.3996
11-25 per day 0.55745 1.75 (1.50-2.04) 0.6960
26-50 per day 1.01296 2.75 (2.21-3.43) <.0001
>50 per day 1.39405 4.03 (2.08-7.82)  
    <.0001
<.0001
Ever noted lumps in breasts (Ref: No)    
 Yes 0.28345 1.33 (1.02-1.72) 0.0333
Ever noted discharge from breasts (Ref: No)    
 Yes 0.39762 1.49 (1.01-2.19) 0.0430
Age at first child birth (Ref: 20–25)    0.0053
 14-19 0.34338 1.41 (1.14-1.74) 0.0016
 26-30 −0.10960 0.90 (0.75-1.07) 0.2284
 31-34 −0.08054 0.92 (0.68-1.25) 0.6017
 35-39 −0.29037 0.75 (0.46-1.21) 0.2351
 40-49 −1.16225 0.31 (0.04-2.23) 0.2463
  1. Ref*: Reference level.