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Table 1 Time trends of age-standardized incidence rates

From: Time trends and age-period-cohort analyses on incidence rates of thyroid cancer in Shanghai and Hong Kong

Population

Calendar period

APC (95% CI)

Shanghai, men

1973-1976

17.1 (−0.6, 38.0)

 

1976-1982

−16.7 (−22.6, −10.3)*

 

1982-2000

2.9 (1.8, 4.1)*

 

2000-2009

14.0 (10.7, 17.5)*

 

Full period

AAPC (95% CI) = 3.1 (1.0, 5.1) *

Shanghai, women

1973-1975

16.9 (−10.8, 53.1)

 

1975-1983

−13.2 (−16.3, −10.0)*

 

1983-2002

5.3 (4.4, 6.2)*

 

2002-2009

18.4 (14.2, 22.7)*

 

Full period

AAPC (95% CI) = 3.8 (1.9, 5.7) *

Hong Kong, men

1983-2011

2.2 (1.5, 2.8)*

 

Full period

AAPC (95% CI) = 2.2 (1.5, 2.8) *

Hong Kong, women

1983-1989

6.8 (2.6, 11.2)*

 

1989-2003

−0.1 (−1.0, 0.9)

 

2003-2011

4.6 (2.9, 6.4)*

 

Full period

AAPC (95% CI) = 2.7 (1.6, 3.8) *

  1. *Significantly different from zero at α = 0.05; AAPC: Average Annual Percent Change; APC: Annual Percent Change; CI: Confidence Interval.
  2. Time trends in age-standardized incidence rates of thyroid cancer by sex in Shanghai during 1973–2009 and in Hong Kong during 1983–2011.
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