Table 1.
Demographic characteristics of hospitalized children with pneumonia, Hunan, China, July 1, 2013-June 30, 2022
| Characteristics | 2013–2014 No. (%) |
2014–2015 No. (%) |
2015–2016 No. (%) |
2016–2017 No. (%) |
2017–2018 No. (%) |
2018–2019 No. (%) |
2019–2020 No. (%) |
2020–2021 No. (%) |
2021–2022 No. (%) |
Total | χ2 /H | P value | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. patients | 5304 | 6366 | 5786 | 6617 | 5595 | 7104 | 4561 | 4305 | 4020 | 49,658 | |||
| Gender, male | 3384 (63.8) | 3989 (62.7) | 3551 (61.4) | 4080 (61.7) | 3463 (61.9) | 4282 (60.3) | 2690 (59.0) | 2596 (60.3) | 2378 (59.2) | 30,413 (61.2) | 43.189 | <0.001 | |
| Age, months | 13 (6, 30) | 13 (6, 33) | 14 (6, 36) | 13 (5, 35) | 13 (6, 35) | 16 (7, 38) | 24 (10, 44) a | 20 (9, 40) b | 28 (10, 48) c | 16 (6, 38) | 1311.484 | <0.001 | |
| Age group, months | 1616.005 | <0.001 | |||||||||||
| 1–5 | 1199 (22.6) | 1590 (25.0) | 1317 (22.8) | 1820 (27.5) | 1302 (23.3) | 1480 (20.8) | 690 (15.1) | 651 (15.1) | 534 (13.3) | 10,583 (21.3) | |||
| 6–11 | 1223 (23.1) | 1313 (20.6) | 1233 (21.3) | 1258 (19.0) | 1167 (20.9) | 1335 (18.8) | 664 (14.6) | 693 (16.1) | 610 (15.2) | 9496 (19.1) | |||
| 12–23 | 1197 (22.6) | 1319 (20.7) | 1138 (19.7) | 1243 (18.8) | 1222 (21.8) | 1522 (21.4) | 861 (18.9) | 1010 (23.5) | 669 (16.6) | 10,181 (20.5) | |||
| 24–59 | 1303 (24.6) | 1682 (26.4) | 1613 (27.9) | 1720 (26.0) | 1361 (24.3) | 1961 (27.6) | 1719 (37.7) | 1639 (38.1) | 1525 (37.9) | 14,523 (29.2) | |||
| ≥ 60 | 382 (7.2) | 462 (7.3) | 485 (8.4) | 576 (8.7) | 543 (9.7) | 806 (11.3) | 627 (13.7) | 312 (7.2) | 682 (17.0) | 4875 (9.8) | |||
| LOS | 7 (6, 9) | 7 (5, 8) | 6 (5, 8) | 6 (5, 8) | 6 (5, 8) | 6 (5, 7) | 6 (5, 7) | 5 (5, 7) | 6 (5, 7) | 6 (5, 8) | 1746.879 | <0.001 | |
| Hospital costs, $ | 894 (722, 1185) | 986 (792, 1337) | 967 (783, 1298) | 925 (744, 1250) | 999 (797, 1383) | 977 (769, 1408) | 914 (741, 1236) | 922 (750, 1234) | 1071 (866, 1559) | 961 (770, 1318) | 843.718 | <0.001 | |
| Admission into PICU, days | 184 (3.5) | 355 (5.6) | 369 (6.4) | 437 (6.6) | 475 (8.5) | 600 (8.4) | 153 (3.4) | 156 (3.6) | 142 (3.5) | 2871 (5.8) | 308.732 | <0.001 | |
| Severe pneumonia | 382 (7.2) | 498 (7.8) | 381 (6.6) | 457 (6.9) | 492 (8.8) | 712 (10.0) | 209 (4.6) | 190 (4.4) | 181 (4.5) | 3502 (7.1) | 201.124 | <0.001 |
Note: The data of age, months, LOS, and hospital costs were presented with a median (P25, P75). No. (%), which stands for patient number (percentage). LOS means length of stay. PICU means pediatric intensive care unit. $ means US dollar. aP < 0.05, for comparison of median age in 2019–2020 with other groups; bP < 0.05, for comparison of median age in 2020–2021 with other groups; cP < 0.05, for comparison of median age in 2021–2022 with other groups (exclude 2020–2021)