Table 3.
Characteristics of Respiratory Syncytial Virus–Coded Hospitalizations During Prepandemic Seasons (2017–2018 to 2019–2020) and in 2021–2022 and 2022–2023 in Finland, Scotland, Spain, and the Netherlands
| Characteristic | Scotland | The Netherlands | Spain | Finland | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pre-pandemic | 2021–2022 | 2022–2023 | Pre-pandemic | 2021–2022 | 2022–2023 | Pre-pandemic | 2021–2022 | 2022–2023 | Pre-pandemic | 2021–2022 | 2022–2023 | |||||||||
| No. (%) | No. (%) | P Valuea | No. (%) | P Valuea | No. (%) | No. (%) | P Valuea | No. (%) | P Valuea | No. (%) | No. (%) | P Valuea | No. (%) | P Valuea | No. (%) | No. (%) | P Valuea | No. (%) | P Valuea | |
| Total | 967 | 306 | 455 | 181 | 80 | 121 | 264 | 56 | 170 | 239 | 111 | 181 | ||||||||
| Age at hospitalization | ||||||||||||||||||||
| <1 y | 810 (83.8%) | 249 (81.4%) | .33 | 366 (80.4%) | .12 | 165 (91.2%) | 66 (82.5%) | .04 | 108 (89.3%) | .58 | 233 (88.3%) | 50 (89.3%) | .83 | 150 (88.2%) | .99 | 189 (79.1%) | 85 (76.6%) | .60 | 134 (74.0%) | .22 |
| 1 to <2 y | 157 (16.2%) | 57 (18.6%) | 89 (19.6%) | 16 (8.8%) | 14 (17.5%) | 13 (10.7%) | 31 (11.7%) | 6 (10.7%) | 20 (11.8%) | 50 (20.9%) | 26 (23.4%) | 47 (26.0%) | ||||||||
| PICU admission | ||||||||||||||||||||
| All | 172 (17.8%) | 37 (12.1%) | .02 | 55 (11.0%) | .006 | 104 (57.5%) | 44 (55.0%) | .71 | 79 (65.3%) | .17 | 60 (22.7%) | 12 (21.4%) | .83 | 22 (12.9%) | .01 | 27 (11.3%) | 9 (8.1%) | .36 | 16 (8.8%) | .41 |
| <1 y | 139 (80.8%) | 29 (78.4%) | 43 (78.2%) | 98 (94.2%) | 38 (86.4%) | 77 (97.5%) | 50 (83.3%) | 8 (66.7%) | 16 (72.7%) | 22 (81.5%) | 7 (77.8%) | 12 (75.0%) | ||||||||
| 1 to <2 y | 33 (19.2%) | 8 21.6%) | 12 (21.8%) | 6 (5.8%) | 6 (13.6%) | 2 (2.5%) | 10 (16.7%) | 4 (33.3%) | 6 (27.3%) | 5 (18.5%) | 2 (22.2%) | 4 (25.0%) | ||||||||
| High-risk groups | ||||||||||||||||||||
| At least 1 | … | … | … | 61 (33.7%) | 40 (50.0%) | .01 | 71 (58.7%) | <.001 | 7 (2.7%) | 10 (17.9%) | <.001 | 17 (10.0%) | .001 | … | … | … | ||||
| Preterm birth | … | … | … | 27 (44.3%) | 15 (37.5%) | 30 (42.3%) | 6 (85.7%) | 4 (40.0%) | 11 (64.7%) | … | … | … | ||||||||
| Comorbidity | … | … | … | 30 (49.2%) | 21 (52.5%) | 32 (45.1%) | 1 (14.3%) | 2 (20.0%) | 3 (17.6%) | … | … | … | ||||||||
| Both | … | … | … | 4 (6.6%) | 4 (10.0%) | 9 (12.7%) | 0 (0%) | 4 (40.0%) | 3 (17.6%) | … | … | … | ||||||||
Abbreviation: PICU, pediatric intensive care unit.
a P value for comparison between the 2021–2022 or the 2022–2023 respiratory syncytial virus season with the prepandemic average. A P value <0.05 was considered statistically significant.