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Table 1 Aggregate mechanical ventilation mode epoch counts

From: Modes of mechanical ventilation vary between hospitals and intensive care units within a university healthcare system: a retrospective observational study

Hospital ICU AC pressure AC/CMV volume APV ASV Bi-level/APRV CPAP CPAP + PS HFOV NIPPV Other PAV+ SIMV pressure SIMV volume All
N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N (row %) N
1 CTICU 7557 (11.2%) 17,196 (25.5%) 5011 (7.4%) 23,050 (34.1%) 628 (0.9%) 1891 (2.8%) 5593 (8.3%) 117 (0.2%) 1980 (2.9%) 340 (0.5%) 0 (0.0%) 510 (0.8%) 3699 (5.5%) 67,572
1 MICU 2401 (4.0%) 38,647 (65.0%) 1976 (3.3%) 5965 (10.0%) 221 (0.4%) 1850 (3.1%) 2660 (4.5%) 998 (1.7%) 3841 (6.5%) 214 (0.4%) 0 (0.0%) 92 (0.2%) 580 (1.0%) 59,445
1 NSICU 514 (0.8%) 10,957 (16.4%) 266 (0.4%) 47,034 (70.3%) 65 (0.1%) 1167 (1.8%) 5758 (8.6%) 77 (0.1%) 564 (0.8%) 149 (0.2%) 0 (0.0%) 3 (0.0%) 313 (0.5%) 66,867
1 NSICU 2 117 (0.5%) 3694 (16.8%) 46 (0.2%) 15,628 (71.0%) 18 (0.1%) 284 (1.3%) 1818 (8.3%) 17 (0.1%) 227 (1.0%) 75 (0.3%) 0 (0.0%) 1 (0.0%) 93 (0.4%) 22,018
1 SICU 1579 (2.2%) 15,631 (22.0%) 2606 (3.7%) 37,652 (52.9%) 374 (0.5%) 3066 (4.3%) 6828 (9.6%) 444 (0.6%) 2462 (3.5%) 149 (0.2%) 0 (0.0%) 77 (0.1%) 256 (0.4%) 71,124
2 CTICU 2609 (5.0%) 39,078 (74.1%) 0 (0.0%) 2 (0.0%) 1085 (2.1%) 122 (0.2%) 7607 (14.4%) 2 (0.0%) 2149 (4.1%) 9 (0.0%) 6 (0.0%) 14 (0.0%) 22 (0.0%) 52,705
2 MICU 3163 (4.3%) 52,784 (71.0%) 3 (0.0%) 2 (0.0%) 1015 (1.4%) 153 (0.2%) 7413 (10.0%) 303 (0.4%) 8109 (10.9%) 56 (0.1%) 522 (0.7%) 27 (0.0%) 749 (1.0%) 74,299
2 NSICU 183 (0.6%) 26,328 (86.1%) 2 (0.0%) 1 (0.0%) 173 (0.6%) 29 (0.1%) 2839 (9.3%) 0 (0.0%) 657 (2.2%) 2 (0.0%) 84 (0.3%) 2 (0.0%) 272 (0.9%) 30,572
2 SICU 1432 (4.0%) 23,617 (66.1%) 2 (0.0%) 0 (0.0%) 2444 (6.8%) 116 (0.3%) 5105 (14.3%) 240 (0.7%) 2367 (6.6%) 22 (0.1%) 123 (0.3%) 41 (0.1%) 240 (0.7%) 35,749
3 CTICU 169 (0.7%) 4848 (19.3%) 13 (0.1%) 1 (0.0%) 161 (0.6%) 211 (0.8%) 4402 (17.5%) 22 (0.1%) 1117 (4.4%) 172 (0.7%) 4 (0.0%) 128 (0.5%) 13,921 (55.3%) 25,169
3 MSICU 380 (1.5%) 12,061 (47.9%) 38 (0.2%) 3 (0.0%) 167 (0.7%) 130 (0.5%) 2505 (9.9%) 19 (0.1%) 1962 (7.8%) 129 (0.5%) 27 (0.1%) 183 (0.7%) 7586 (30.1%) 25,190
4 MSICU 1131 (3.9%) 19,593 (67.5%) 3 (0.0%) 3 (0.0%) 5 (0.0%) 110 (0.4%) 4294 (14.8%) 204 (0.7%) 3472 (12.0%) 17 (0.1%) 0 (0.0%) 7 (0.0%) 185 (0.6%) 29,024
All All 21,235 (3.8%) 264,434 (47.2%) 9966 (1.8%) 129,341 (23.1%) 6356 (1.1%) 9129 (1.6%) 56,822 (10.2%) 2443 (0.4%) 28,907 (5.2%) 1334 (0.2%) 766 (0.1%) 1085 (0.2%) 27,916 (5.0%) 559,734
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