Table. 1.

Table. 1.

Joinpoint analysis of all Australian and sex-specific incidence rates

GBC incidence group Perioda) Years APC 95% CI Significance (p-value)b)
All Australians 1 1982–1996 0.10% –0.50 to 0.70 NS (0.84)
2 1996–2005 –2.80% –4.30 to –1.20 S (< 0.01)
3 2005–2017 2.20% 1.40 to 3.10 S (< 0.01)
Male 1 1982–1997 0.70% –0.20 to 1.60 NS (0.14)
2 1997–2003 –4.80% –9.70 to 0.50 NS (0.07)
3 2003–2017 2.60% 1.60 to 3.70 S (< 0.01)
Female 1 1982–1998 –0.40% –0.90 to 0.10 NS (0.11)
2 1998–2005 –3.20% –5.50 to –0.90 S (< 0.01)
3 2005–2017 1.70% 0.80 to 2.50 S (< 0.01)

GBC, gallbladder cancer; APC, annual percent change; CI, confidence interval.

a)Changes in incidence rates were separated into three distinct time periods.

b)A significant difference in the rate over a defined period was defined as p-value <0.05. ‘S’ stands for ‘significant’ and ‘NS’ stands for ‘not significant’.

Ann Hepatobiliary Pancreat Surg 2022;26:263-9 https://doi.org/10.14701/ahbps.21-169
© 2022 Ann Hepatobiliary Pancreat Surg