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. 2025 Aug 22;20:1325–1336. doi: 10.2147/CIA.S530162

Table 1.

Baseline Characteristics of the Study Population

Overall First Attempt Success Multiple Attempts Success P-Value
(n = 147) (n = 128) (n = 19)
Age (year) 66.00 (59.00–70.00) 66.00 (59.00–70.00) 67.00 (50.00–75.50) 0.644
Sex (male) 125 (85.03%) 111 (86.72%) 14 (73.68%) 0.254
ASA physical status 0.214
 1 7 (4.76%) 7 (5.47%) 0
 2 129 (87.76%) 113 (88.28%) 16 (84.21%)
 3 11 (7.48%) 8 (6.25%) 3 (15.79%)
BMI (kg/m−2) 22.20 (19.80–24.60) 22.15 (19.75–24.33) 23.60 (20.35–25.05) 0.396
Laryngeal obstruction 24 (16.33%) 16 (12.50%) 8 (42.10%) 0.003
Indication of AFBI 0.884
 Limited neck movement 8 (5.44%) 7 (5.47%) 1 (5.26%)
 Limited mouth opening 6 (4.08%) 5 (3.91%) 1 (5.26%)
 Pathological obstruction of supra-glottic 117 (79.59%) 103 (80.47%) 14 (73.68%)
 Pathological obstruction of sub-glottic 16 (10.88%) 13 (10.16%) 3 (15.79%)

Note: Values are presented as n (%) or median (Interquartile Range).

Abbreviations: ASA, American Society of Anesthesiologist; BMI, Body mass index; AFBI; Awake fibreoptic bronchoscopy intubation.