Table 2 Joinpoint analysis of newly smear-positive TB in different geographic regions of China
Newly smear-positive TB* | Annual percentage change (95% CI) | P value | |
|---|---|---|---|
All provinces | |||
1997 to 2002 | 11.21 to 12.49 | 1.1 (−3.5 to 5.8) | 0.600 |
2002 to 2005 | 12.49 to 41.90 | 42.8 (22.5–66.5) | < 0.001 |
2005 to 2010 | 41.90 to 34.21 | −3.0 (−6.6 to 0.8) | 0.100 |
2010 to 2018 | 34.21 to 16.23 | −9.9 (−12.7 to −6.9) | < 0.001 |
Eastern provinces | |||
1997 to 2002 | 13.07 to 13.67 | 1.0 (−1.9 to 4.1) | 0.500 |
2002 to 2005 | 13.67 to 34.10 | 29.3 (16.3–43.8) | < 0.001 |
2005 to 2010 | 34.10 to 29.54 | −2.9 (−5.5 to −0.1) | < 0.001 |
2010 to 2018 | 29.54 to 12.61 | − 10.3 (− 11.5 to − 9.2) | < 0.001 |
Central provinces | |||
1997 to 2002 | 11.36 to 12.49 | − 0.1 (− 4.9 to 4.8) | 1.000 |
2002 to 2005 | 12.49 to 51.43 | 54.7 (32.5–80.7) | < 0.001 |
2005 to 2010 | 51.43 to 39.50 | − 3.4 (− 6.9 to 0.2) | 0.100 |
2010 to 2018 | 39.50 to 18.59 | − 9.6 (− 11.2 to − 8.0) | < 0.001 |
Western provinces | |||
1997 to 2002 | 8.61 to 9.83 | 2.4 (− 6.0 to 11.5) | 0.600 |
2002 to 2005 | 9.83 to 44.54 | 52.1 (16.0 to 99.4) | < 0.001 |
2005 to 2010 | 44.54 to 36.55 | − 3.0 (− 9.1 to 3.4) | 0.300 |
2010 to 2018 | 36.55 to 19.06 | − 9.8 (− 11.3 to − 8.3) | < 0.001 |