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Table 5 Trends in observed 5-year survival and age-standardized net survival in women with breast cancer

From: Trends in incidence, mortality and survival in women with breast cancer from 1985 to 2012 in Granada, Spain: a population-based study

Period n Observed survival Net survival (age-standardized)
OS 95%CI NS 95%CI
19851989 844 63.9 60.5 67.0 67.5 61.8 72.5
19901994 1087 67.5 64.6 70.2 69.6 64.7 73.9
19951999 1344 73.7 71.3 76.0 76.4 72.4 79.8
20002004 1721 77.0 75.0 79.0 78.9 75.7 81.8
20052009 2030 80.0 78.2 81.7 82.1 79.0 84.7
20102012a 1791 81.0 78.8 83.1 83.7 79.8 86.8
  1. aPeriod analysis instead of cohort analysis was used
  2. Estimates for observed survival calculated with the Kaplan-Meyer method, and for net survival calculated with the Pohar–Perme method (cohort analysis) in 5-year periods from 1985 to 2012 and in the 3-year period from 2010 to 2012. Age-standardized rates referred to the European population. Population: 463816 women residing in Granada province (Source: 2011 population census for Granada, Statistics and Cartography Institute of Andalusia). OS: observed survival; NS: net survival
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