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Table 2 Cervical cancer incidence trend analyses by region and histology in Norway during 1992–2016

From: Regional differences in cervical cancer incidence and associated risk behaviors among Norwegian women: a population-based study

Histology Region AAPC1 (95% CI2) Joinpoint3 Subperiod APC4 (95% CI)
All cancer North -1.0 (−1.2, −0.7)* None   
Middle −0.3 (−1.0, 0.4) 2002 1992–2002 −5.4 (−6.6, −4.1)*
Middle    2002–2016 3.4 (2.6, 4.2)*
Southeast −0.7 (−1.0, − 0.3)* 2007 1992–2007 −2.8 (−3.1, −2.4)*
Southeast    2007–2016 2.9 (2.1, 3.7)*
West −0.3 (− 0.6, 0.0) None   
SCC5 North −1.9 (−2.3, − 1.5)* None   
Middle −0.5 (−1.4, 0.4) 2003 1992–2003 −6.4 (−7.8, −5.1)*
Middle    2003–2016 4.9 (3.6, 6.1)*
Southeast −1.2 (−1.6, −0.9)* 2006 1992–2006 −3.4 (−3.8, − 3.1)*
Southeast    2006–2016 1.9 (1.3, 2.6)*
West −0.4 (−0.8, − 0.1)* None   
ADC6 North 3.5 (2.7, 4.4)* None   
Middle 1.7 (1.1, 2.4)* None   
Southeast 1.4 (1.0, 1.8)* None   
West 0.3 (−0.3, 0.9) None   
  1. 1 Average annual percentage trend from 1992 to 2016
  2. 2 Confidence interval
  3. 3 Whether/when (calendar year) trend changed, from joinpoint regression analysis
  4. 4 Annual percentage change for subperiod with distinct incidence trend
  5. 5 Squamous cell cancer
  6. 6 Adenocarcinoma
  7. * P < 0.05