Figure 4.
Pneumococcal mortality after introduction of PPV-23 and PCV-7 for people aged 65–69, 70–74, 75–79, 80–84, and ≥85 years, U.S., 1968–2006a
aObserved pneumococcal death rates are denoted by O. The introduction of PPV-23 in 1983 and PCV-7 in 2000 are noted with arrows. The dashed vertical lines indicate the International Classification of Diseases version used. The shaded regions represent the 95% confidence intervals, and the solid line represents the median prediction based on dynamic linear regression models of age group-specific pneumococcal mortality.
ICD-8, −9, −10 = International Classification of Diseases, Eighth, Ninth, or 10th Revision
PPV-23 = 23-valent-polysaccharide pneumococcal vaccine
PCV-7 = pneumococcal conjugate vaccine
