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Table 12 Distribution of MeSH terms referring to age groups, by main types of pneumonia studied in those groups

From: A snapshot of pneumonia research activity and collaboration patterns (2001–2015): a global bibliometric analysis

MeSH age Pneumonia, Aspiration Pneumonia, Bacterial Pneumonia, Ventilator-Associated Pneumonia, Pneumocystis Pneumonia, Viral
N of docs rank % N of docs rank % N of docs rank % N of docs rank % N of docs rank %
Infant, newborn 51 9 4.61 143 10 3.15 80 10 5.20 112 10 9.24 35 10 2.65
Infant 98 8 8.85 140 5 10.58 89 8 5.79 278 4 22.94 278 4 22.94
Child, preschool 100 7 9.03 91 8 6.88 85 9 5.53 268 5 22.11 268 5 22.11
Child 117 5 10.57 124 6 9.37 100 7 6.50 222 7 18.32 222 7 18.32
Adolescent 107 6 9.67 148 4 11.19 145 5 9.43 250 6 20.63 250 6 20.63
Adult 280 3 25.29 548 1 41.42 493 3 32.05 397 1 32.76 397 1 32.76
Young adult 44 10 3.97 266 9 5.86 133 6 8.65 126 9 10.40 95 7 7.18
Middle aged 366 2 33.06 502 2 37.94 680 1 44.21 348 2 28.71 348 2 28.71
Aged 449 1 40.56 288 3 21.77 496 2 32.25 281 3 23.18 281 3 23.18
Aged, 80 and over 250 4 22.58 88 9 6.65 188 4 12.22 134 8 11.06 134 8 11.06
  1. N of docs numbers of documents