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. 2025 Jun 1;28(6):324–333. doi: 10.34172/aim.33209

Table 2. The j Joinpoint Regression Model Output for the Incidence Rate Trend Analysis of Deciduous Teeth Caries in Three Locations between 1990 and 2021 Based on the Global Burden of Disease Database .

Segments Global North Africa and Middle East Iran
Time interval APC (95% CI) Time interval APC (95% CI) Time interval APC (95% CI)
Trend 1 1990-2000 -0.163* (-0.20, -0.12) 1990-2000 -0.252* (-0.32, -0.18) 1990-1994 -0.440* (-0.47, -0.41)
Trend 2 2000-2010 -0.504* (-0.56, -0.46) 2000-2010 -1.684* (-1.74, -1.63) 1994-2006 -0.012 (-0.02, 0.00)
Trend 3 2010-2019 0.060* (0.02, 0.12) 2010-2021 0.160* (0.11, 0.21) 2006-2015 -0.062* (-0.10, -0.05)
Trend 4 2019-2021 -0.760* (-1.00, -0.42) - - 2015-2019 0.097* (0.05, 0.16)
Trend 5 - - - - 2019-2021 -0.243* (-0.32, -0.14)
AAPC 1990-2021 -0.250* (-0.26, -0.23) 1990-2021 -0.571* (-0.59, -0.55) 1990-2021 -0.083* (-0.09, -0.08)

*Significant at 0.05 level.