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. 2021 Oct 19;25:365. doi: 10.1186/s13054-021-03786-0

Table 3.

Secondary outcomes; a comparison of characteristics between the low and high E-swallow groups, as defined by a median split on the percentage of E-swallowing during high flow oxygen therapy (HFNO), low flow oxygen therapy (LFNO), and both treatments

Variables Total (n = 22) p value HFNO (n = 22) p value LFNO (n = 22) p value
E ≤ 68%
(n = 11)
E > 68%
(n = 11)
E ≤ 68%
(n = 9)
E > 68%
(n = 13)
E ≤ 68%
(n = 11)
E > 68%
(n = 11)
Age (yr), mean ± SD 50 ± 11 62 ± 11 0.020* 50 ± 12 60 ± 11 0.054 55 ± 13 56 ± 12 0.647
Male, n (%) 8 (72.7%) 7 (63.6%) 0.647 6 (66.7%) 9 (69.2%) 0.899 8 (72.7%) 7 (63.6%) 0.647
Female, n (%) 3 (27.3%) 4 (36.4%) 3 (33.3%) 4 (30.8%) 3 (27.3%) 4 (36.4%)
BMI (kg/m2), mean ± SD 20.4 ± 2.4 24.2 ± 5.2 0.045* 20.0 ± 2.7 23.9 ± 4.7 0.039* 21.6 ± 4.1 23.0 ± 4.8 0.476
Comorbidities, n (%)
 HT 3 (27.3%) 8 (72.7%) 0.033* 3 (33.3%) 8 (61.5%) 0.193 5 (45.5%) 6 (54.5%) 0.670
 DM 3 (27.3%) 6 (54.5%) 0.193 3 (33.3%) 6 (46.2%) 0.548 4 (36.4%) 5 (45.5%) 0.665
 DLP 3 (27.3%) 4 (36.4%) 0.647 3 (33.3%) 4 (30.8%) 0.899 3 (27.3%) 4 (36.4%) 0.647
 CKD 3 (27.3%) 3 (27.3%) 1.000 3 (33.3%) 3 (23.1%) 0.595 4 (36.4%) 2 (18.2%) 0.338
 IHD 0 (0%) 1 (9.1%) 0.306 0 (0%) 1 (7.7%) 0.394 0 (0%) 1 (9.1%) 0.306
APACHE II, mean ± SD 5.6 ± 2.7 6.6 ± 3.8 0.440 5.9 ± 2.7 6.2 ± 3.7 0.813 6.6 ± 3.4 5.6 ± 3.1 0.521
ETT duration (days),median 3 [2, 4] 2 2, 6] 0.972 4 [2, 6] 2 [2, 5] 0.268 3 [2, 4] 2 [2, 6] 0.972
Sedation, n (%)
 Fentanyl 6 (54.5%) 5 (45.5%) 0.670 6 (66.7%) 5 (38.5%) 0.193 6 (54.5%) 5 (45.5%) 0.670
 Midazolam 3 (27.3%) 1 (9.1%) 0.269 3 (33.3%) 1 (7.7%) 0.125 2 (18.2%) 2 (18.2%) 1.000
 Propofol 1 (9.1%) 0 (0%) 0.306 1 (11.1%) 0 (0%) 0.219 0 (0%) 1 (9.1%) 0.306

*p < 0.05; yr, year; BMI, body mass index; HT, hypertension; DM, diabetes mellitus; DLP, dyslipidemia; CKD, chronic kidney disease; IHD, ischemic heart disease; APACHE II, Acute Physiology And Chronic Health Evaluation II; ETT, endotracheal tube