Table 1 Trends of Tuberculosis age-standardized incidence rate by gender in Cameroon (CAM), Central African Republic (CAR), the Democratic Republic of the Congo (DRC), and Chad from 1990 to 2019.

From: Long-term trends of tuberculosis incidence and mortality in four central African countries

Segments

CAM

CAR

DRC

Chad

Year

APC (95% CI)

Year

APC (95% CI)

Year

APC (95% CI)

Year

APC (95% CI)

ASIR male

Trend 1

1990–1993

− 2.1* (− 2.9, − 1.3)

1990–1996

− 0.4* (− 0.4, − 0.3)

1990–1995

0.1 (− 0.0, 0.2)

1990–1992

− 2.3* (− 2.6, − 2.0)

Trend 2

1993–2006

− 0.7* (− 0.8, − 0.6)

1996–2000

− 1.1* (− 1.4, − 0.9)

1995–2000

0.8* (0.6, 1.0)

1992–1995

− 1.0* (− 1.3, − 0.7)

Trend 3

2006–2011

0.4 (− 0.1, 0.9)

2000–2005

− 0.2* (− − 0.4, − 0.1)

2000–2005

− 0.3* (− 0.5, − 0.1)

1995–2000

1.0* (0.9, 1.1)

Trend 4

2011–2014

− 1.1 (− 2.6, 0.5)

2005–2014

− 0.8* (− 0.9, − 0.8)

2005–2010

0.7* (0.5, 0.9)

2000–2010

0.4* (0.3, 0.4)

Trend 5

2014–2017

0.3 (− − 1.3, 1.9)

2014–2017

1.2 (− 0.8, 1.7)

2010–2014

− 1.0* (− 1.3, − 0.7)

2010–2017

− 0.4* (− 0.4, − 0.3)

Trend 6

2017–2019

− 5.0* (− 6.5, − 3.5)

2017–2019

− 0.3 (− 0.7, 0.2)

2014–2019

− 0.7* (− 0.8, − 0.5)

2017–2019

− 3.0* (− 3.3, − 2.7)

AAPC

1990–2019

− 0.9* (− 1.2, − 0.6)

1990–2019

− 0.4* (− 0.5, − 0.4)

1990–2019

− 0.0 (− 0.1, 0.0)

1990–2019

− 0.3* (− 0.3, − 0.2)

ASIR female

Trend 1

1990–1994

− 2.2* (− 2.3, − 2.1)

1990–1994

3.5* (3.3, 3.7)

1990–1996

0.3* (0.1, 0.5)

1990–1994

− 2.0* (− 2.3, − 1.6)

Trend 2

1994–2008

− 1.0* (− 1.0, − 1.0)

1994–2000

1.0* (0.9, 1.1)

1996–2004

0.7* (0.5, 0.8)

1994–1997

0.0 (− 0.3, 0.3)

Trend 3

2008–2011

− 1.8* (− 2.1, − 1.5)

2000–2005

− 0.5* (− 0.7, − 0.4)

2004–2008

0.3 (− 0.2, 0.8)

1999–2005

0.7* (0.4, 0.9)

Trend 4

2011–2014

− 4.5* (− 4.7, − 4.2)

2005–2014

− 2.0* (− 2.0, − 1.9)

2008–2011

− 0.4 (− 1.5, 0.7)

2005–2008

− 1.2* (− 2.1, − 0.2)

Trend 5

2014–2017

− 3.4* (− 3.6, − 3.1)

2014–2017

− 7.1* (− 7.7, − 6.6)

2011–2014

− 2.8* (− 3.9, − 1.8)

2008–2014

− 1.7* (− 2.0, − 1.5)

Trend 6

2017–2019

− 4.8* (− 5.0, − 4.5)

2017–2019

− 3.5* (− 4.0, − 2.9)

2014–2019

− 0.5* (− 0.7, − 0.3)

2014–2019

− 3.5* (− 3.8, − 3.3)

AAPC

1990–2019

− 2.1* (− 2.2, − 2.1)

1990–2019

− 1.0* (− 1.1, − 1.0)

1990–2019

− 0.1 (− 0.3, 0.0)

1990–2019

− 1.2* (− 1.4, − 1.1)

  1. ASIR age-standardized incidence rate, APC annual percentage change, AAPC average annual percent change, CI confidence interval.
  2. *Values significantly different from zero at alpha = 0.05.