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. 2019 Jul 31;13:1295–1302. doi: 10.2147/PPA.S212507

Table 2.

Immunization of elderly patients by different vaccinations

Type of immunization* Documentation available, n (%) Documentation unavailable, n (%)
Tetanus 402 (57.7%) 287 (41.2%)
Diphtheria 388 (55.7%) 307 (44.0%)
Pertussis 231 (33.1%) 462 (66.3%)
Polio 183 (26.3%) 513 (73.6%)
Influenza 389 (55.8%) 235 (33.7%)
Pneumococcal 211 (30.3%) 485 (69.6%)

Note: *Number varies due to missing data.

Abbreviation: N, Number.