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Table 1 Joinpoint analyses of colon and rectal cancer incidence by sex and age, 1983–2012, Hong Kong

From: Differential incidence trends of colon and rectal cancers in Hong Kong: an age-period-cohort analysis

Sex Anatomic sites Age Calendar period Average APC (95% CI)
Male Colon cancer All 20+ 1983–1995 1.16 (0.88, 1.44)
  1995–2012 − 0.42 (− 0.54, − 0.30)
  Full Period 0.05 (− 0.02, 0.13)
20–49 1983–2012 − 1.11 (− 1.32, − 0.90)
50+ 1983–1996 1.40 (1.16, 1.64)
  1996–2012 − 0.44 (− 0.57, − 0.31)
  Full Period 0.21 (0.13, 0.29)
Rectal cancer All 20+ 1983–2012 1.35 (1.23, 1.46)
20–49 1983–2012 0.60 (0.37, 0.84)
50+ 1983–2012 1.45 (1.32, 1.58)
Female Colon cancer All 20+ 1983–1992 2.24 (1.68, 2.79)
  1992–2012 − 0.91 (− 1.04, − 0.79)
  Full period − 0.33 (− 0.43, − 0.23)
20–49 1983–2012 − 1.56 (− 1.73, − 1.39)
50+ 1983–1992 2.57 (2.04, 3.11)
  1992–2012 − 0.78 (− 0.91, − 0.66)
  Full period − 0.12 (− 0.23, − 0.01)
Rectal cancer All 20+ 1983–2012 0.23 (0.13, 0.33)
20–49 1983–2012 − 0.17 (− 0.40, 0.05)
50+ 1983–2012 0.29 (0.19, 0.39)
  1. APC annual percent change