Estimating the burden of hospitalization for pneumococcal pneumonia in a general population aged 50 years or older and implications for vaccination strategies

Figures & data

Figure 1. ICD-9 CM codes for all-cause pneumonia recorded, as principal or secondary diagnosis, in a total of 72 372 hospitalizations for pneumonia in Sicilian patients (white boxes), and calculated fractions for estimating specific pneumococcal pneumonia cases (grey boxes).

Figure 2. Hospitalization rate trends of all-cause pneumonia, unspecified pneumonia, pneumococcal pneumonia, and model estimated pneumococcal pneumonia (the striped area indicates pneumococcal pneumonia cases estimated by the model).

Table 1. Estimated hospitalization rates (cases per 100 000 Adults) for pneumococcal pneumonia in Sicily (2005 through 2012)

	2005	2006	2007	2008	2009	2010	2011	2012
Age group
50–54	34.0	28.5	21.5	34.8	21.0	27.0	25.3	28.3
55–59	43.6	37.9	38.9	47.5	51.5	35.8	21.9	23.6
60–64	75.9	53.7	48.6	66.6	58.9	48.9	43.8	23.2
65–69	89.2	93.1	59.2	59.8	59.3	77.4	56.0	66.5
70–74	125.8	122.1	93.1	95.0	122.1	138.5	93.3	52.1
75–79	252.3	219.0	184.7	224.8	161.8	210.4	215.8	178.2
80 or more	509.7	475.2	344.2	306.9	397.4	451.4	349.2	395.7
Total	141.1	126.3	97.9	109.5	109.7	125.3	100.6	95.9