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Table 5 EHR estimates with data on colorectal cancer using a life table not stratified by SPC

From: Correcting inaccurate background mortality in excess hazard models through breakpoints

  Model 1 Model 2 Model 3 (Ɛ = 75)
Variables EHR [95% CI] EHR [95% CI] \( \hat{\alpha} \)[95% CI] EHR [95% CI] \( \hat{\alpha} \)[95% CI]
Age
 ≤ 64 ref. ref.   ref.  
 65–74 1.69 [1.15–2.50] 1.70 [1.16–2.49]   1.74 [1.25–2.43]  
 75–90 2.14 [1.43–3.18] 2.21 [1.43–3.42]   2.14 [1.41–3.24]  
Sex
 Men ref. ref.   ref.  
 Women 0.93 [0.65–1.33] 0.94 [0.63–1.38]   0.80 [0.53–1.21]  
CS
 I ref. ref.   ref.  
 II 3.71 [1.53–8.99] 2.94 [1.27–6.79]   2.91 [1.21–6.98]  
 III-IV 10.96 [4.70–25.53] 8.61 [3.40–21.78]   7.33 [2.48–21.62]  
SPC
 NOA ref. ref. 0.72 [0.27–1.90] ref. 1.54 [0.15–15.96]a
     0.53 [0.23–1.24]b
 CMW 1.23 [0.75–2.03] 1.07 [0.57–2.00] 1.05 [0.59–1.88] 1.31 [0.63–2.70] 0.37 [0.12–1.11]a
     1.19 [0.62–2.30]b
 Farmers 0.72 [0.37–1.39] 0.59 [0.25–1.40] 1.10 [0.63–1.93] 0.85 [0.37–1.94] 0.11 [0.05–0.24]a
     1.41 [0.69–2.87]b
 OOA 1.17 [0.68–2.03] 1.19 [0.61–2.31] 0.70 [0.41–1.20] 1.24 [0.56–2.76] 0.65 [0.23–1.81]a
     0.66 [0.38–1.15]b
 AIC 2539 2545 2539
  1. Note: Excess hazard ratio (EHR) with 95% confidence interval (95% CI) are estimated for Models 1, 2 and 3, while α with 95% CI are estimated for Model 2 and 3. Ɛ, Determined breakpoint; CS, Cancer stage; NOA, No occupational activity; CMW, Clerical and manual workers; OOA, Other occupational activities; a Estimate of α before Ɛ; b Estimate of α after Ɛ; AIC, Akaike information criterion