Skip to main content

Table 2 Patient characteristics of participants in studies included in the meta-analysis

From: The effectiveness of high-flow nasal cannula during sedated digestive endoscopy: a systematic review and meta-analysis

Study, group, %*
  Kim [22] Teng [26] Mazzeffi [27] Lin [21] Nay [28] Riccio [23] Thiruvenkatarajan [24]
Characteristic HFNC
n = 36
SNC
n = 36
HFNC
n = 50
SNC
n = 51
HFNC
n = 132
SNC
n = 130
HFNC
n = 994
SNC
n = 1000
HFNC
n = 191
SNC
n = 188
HFNC
n = 28
SNC
n = 31
HFNC
n = 65
SNC
n = 66
Age, mean yr 65.3 67.3 46.7 51.6 62 62 48 47 64$ 64$ 54 59 69.1 65.5
Male sex 61.1 69.4 38 43.1 87 71 41.5 41 57 51 14 13 43.1 40.9
Operation               
ERCP 100 100    23.5 20.8        100 100
EGD    100 100 76.5 79.2         
gastroscopy        100 100 18.3 20.2     
colonoscopy          52.4 48.9 100 100   
combined#          29.3 30.9     
BMI, mean 23.1 22.1 22.5 23.4 28.3 28.2 22.8 23 27$ 26.6$ 48 49 30 28.2
ASA grade               
1 and 2 52.8 58.3 100 100    100 100 72.3 72.4 11 13 20 17.7
3 and above 47.2 41.7 0 0    0 0 27.7 27.6 89 87 80 83.3
Hypoxemia 0 19.4 2 21.6 21.2 33.1 0 8.4 9.4 33.5 39.3 45.2 7.7 9.1
Need for airway intervention 0 30.6 2 17.6    0.8 31.9 19.9 58.5 53.6 51.6 23.1 28.8
  1. ERCP endoscopic retrograde cholangiopancreatography, EGD esophagogastroduodenoscopy, BMI body mass index, ASA American Society of Anesthesiologists, HFNC High-flow nasal cannula oxygen, SNC standard nasal cannula
  2. *Unless otherwise indicated; #gastroscopy and colonoscopy; $median value