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. 2020 Jul 23;12(7):e9349. doi: 10.7759/cureus.9349

Figure 2. Trends in the prevalence of ischemic heart disease using unadjusted (A) and age-standardized (B) rates.

Figure 2

Forecast estimates using Statistical Package for the Social Sciences (SPSS) Time-Series Modeler (Ljung Box Q, p = 0.14). Dotted lines indicate upper and lower confidence limits. Age-standardization removes the effect of changes in the population age distribution (such as aging) over time and across global regions.

SPSS: IBM Corp. Armonk, NY