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Table 3 The results of joinpoint regression analyses on secular trends of six regions

From: Suicide rates in China, 2004–2014: comparing data from two sample-based mortality surveillance systems

  Segment 1   Segment 2
APC (95% CI) JP (95% CI) APC (95% CI)
East
 Urban − 8.3 (− 10.9, 5.6) 2011 (2009, 2011) 3.8 (− 5.4, 13.9)
 Rural − 5.9 (− 6.8, 5.1)   
Central
 Urban − 16.3 (− 25.9, − 5.4) 2008 (2006, 2012) 0.5 (− 5.1, 6.6)
 Rural −5.5 (− 6.5, − 4.5)   
West
 Urban −7.8 (− 9.0, − 6.6)   
 Rural −18.1 (− 32.3, − 0.9) 2006 (2006,2012) − 2.3 (− 4.2, − 0.3)
  1. Summary of the Annual Percent Change1 (“APC”) in suicide rates Joinpoints2 (“JP”s) on the trends in Crude Suicide Rates and their 95% Confidence Intervals (“CI”s) for the population age 10+ in the three regions of China using the data from the CDC-DSP System (2004–2014). APC coefficients are the annual percent changes in suicide rates in the years between the specific joint points. JPs are years when changes in suicide trends occur