Table 3.

Procedure groups classified as ‘aerosol-generating’ or ‘possibly aerosol-generating’ with high levels of agreement (80% or more of sources)

Procedure group	Aerosol source	N of sources mentioning procedures in this group	n (%) of sources that classified procedures in this group as aerosol-generating	n (%) of sources that classified procedures in this group as possibly aerosol-generating	n (%) of sources that classified procedures in this group as not aerosol-generating
Autopsy	Autopsy	33	33 (100)	0 (0)	0 (0)
Surgery/postmortem procedures with high-speed devices	Wound/invasive procedure	14	14 (100)	0 (0)	0 (0)
Intubation and extubation procedures	Tracheobronchial, oronasal	119	114 (96)	5 (4)	0 (0)
Bronchoscopy	Tracheobronchial	94	89 (95)	2 (2)	3 (3)
Sputum induction	Tracheobronchial	64	60 (94)	2 (3)	2 (3)
Manual ventilation	Tracheobronchial	56	52 (93)	2 (4)	2 (4)
Airway suctioning	Tracheobronchial, oronasal	103	92 (89)	6 (6)	5 (5)
Cardiopulmonary resuscitation	Tracheobronchial	74	66 (89)	3 (4)	5 (7)
Tracheostomy and tracheostomy procedures	Tracheobronchial	65	57 (88)	8 (12)	0 (0)
Non-invasive ventilation	Tracheobronchial	89	78 (88)	8 (9)	3 (3)
High-flow oxygen therapy	Inhaled therapy	37	32 (86)	4 (11)	1 (3)
Breaking closed ventilation systems (intentionally or unintentionally)	Tracheobronchial	13	11 (85)	2 (15)	0 (0)
Nebulised or aerosol therapy	Inhaled therapy	91	75 (82)	9 (10)	7 (8)
Nasopharyngoscopy or laryngoscopy	Oronasal	16	12 (75)	2 (13)	2 (13)
High-frequency oscillatory ventilation	Tracheobronchial	39	27 (69)	9 (23)	3 (8)
Coughing	Tracheobronchial	18	10 (55)	5 (28)	3 (17)
Mechanical ventilation	Tracheobronchial	15	8 (53)	4 (27)	3 (20)
Chest physiotherapy	Tracheobronchial	46	23 (50)	14 (30)	9 (20)
Nasopharyngeal aspirate	Oronasal	29	13 (45)	12 (41)	4 (14)

Percentages were rounded to the nearest full percentage point.