. 2021 Jan 8;29:e3400. doi: 10.1590/1518-8345.3355.3400

Figure 2. General characteristics of studies included in the review. Ribeirão Preto, SP, Brazil, 2018.

Article n°	Author	Year	Country	Language	Level of Evidence
Respiratory complications
1	Kearns, et al.⁽ 17 ⁾	2000	USA	English	II
2	Attanasio, et al.⁽ 18 ⁾	2009	Italy	English	VI
3	Neumann, Delegge⁽ 19 ⁾	2002	USA	English	II
4	Rassias, et al.⁽ 20 ⁾	1998	USA	English	VI
5	Lin, et al.⁽ 21 ⁾	2008	Taiwan	English	VI
6	McWey, et al.⁽ 22 ⁾	1988	USA	English	VI
7	Bankier, et al.⁽ 23 ⁾	1997	Austria	English	VI
8	Marderstein, et al.⁽ 24 ⁾	2004	USA	English	VI
9	de Aguilar-Nascimento, et al.⁽ 10 ⁾	2007	Brazil	English/Portuguese/Spanish	VI
10	Metheny, et al.⁽ 25 ⁾	2011	USA	English	VI
11	Marco, et al.⁽ 26 ⁾	2013	Spain	English/Spanish	VI
12	Sweatman, et al.⁽ 27 ⁾	1978	USA	English	VI
13	Vaughan⁽ 28 ⁾	1981	UK	English	VI
Respiratory complications
14	Balogh, et al.⁽ 29 ⁾	1983	USA	English	VI
15	McDanal, et al.⁽ 30 ⁾	1983	USA	English	VI
16	Schorlemmer, Battaglini⁽ 31 ⁾	1984	USA	English	VI
17	Harris, Filandrinos⁽ 32 ⁾	1993	USA	English	VI
18	Thomas, et al.⁽ 33 ⁾	1996	USA	English	VI
19	Kolbitsch, et al.⁽ 34 ⁾	1997	Austria	English	VI
20	Metheny, et al.⁽ 35 ⁾	1998	USA	English	VI
21	Winterholler, Erbguth⁽ 36 ⁾	2002	Germany	English	VI
22	Kannan, et al.⁽ 37 ⁾	1999	UK	English	VI
23	Howell, Shriver⁽ 38 ⁾	2005	USA	English	VI
24	O'Neil, Krishnananthan⁽ 39 ⁾	2004	Australia	English	VI
25	Pillai, et al.⁽ 40 ⁾	2005	Canada	English	VI
26	Kawati, Rubertsson⁽ 41 ⁾	2005	Sweden	English	VI
27	De Giacomo, et al.⁽ 42 ⁾	2006	Italy	English	VI
28	Haas, et al.⁽ 43 ⁾	2006	Netherlands	English	VI
29	Freeberg, et al.⁽ 44 ⁾	2010	USA	English	VI
30	Lemyze, Brown⁽ 45 ⁾	2009	France	English	VI
31	Lo, et al.⁽ 46 ⁾	2008	USA	English	VI
32	Wang, et al.⁽ 47 ⁾	2008	Taiwan	English	VI
33	Ishigami, et al.⁽ 48 ⁾	2009	Japan	English	VI
34	Takwoingi⁽ 49 ⁾	2009	UK	English	VI
35	Chhavi, et al.⁽ 50 ⁾	2010	India	English	VI
36	Luo, et al.⁽ 51 ⁾	2011	China	English	VI
37	Shaikh, et al.⁽ 52 ⁾	2010	Qatar	English	VI
38	Sellers⁽ 53 ⁾	2012	UK	English	VI
39	Amirlak, et al.⁽ 54 ⁾	2012	USA	English	VI
40	Raut, et al.⁽ 55 ⁾	2015	India	English	VI
41	Andresen, et al.⁽ 56 ⁾	2016	Denmark	English	VI
42	Kao, et al.⁽ 57 ⁾	2012	China	English	VI
43	Leonard, et al.⁽ 58 ⁾	2012	Ireland	English	VI
44	Paul, et al.⁽ 59 ⁾	2013	USA	English	VI
Esophageal or pharyngeal complications
45	James⁽ 60 ⁾	1978	UK	English	VI
46	Duthorn, et al.⁽ 61 ⁾	1998	Germany	English	VI
47	Isozaki, et al.⁽ 62 ⁾	2005	Japan	English	VI
48	Wu, et al.⁽ 63 ⁾	2006	Taiwan	English	VI
49	Campo, et al.⁽ 64 ⁾	2010	Spain	Spanish	VI
50	Sankar, et al.⁽ 65 ⁾	2012	UK	English	VI
51	Cereda, et al.⁽ 66 ⁾	2013	Italy	English	VI
52	Khasawneh, et al.⁽ 67 ⁾	2013	USA	English	VI
Tube obstruction
53	Attanasio, et al.⁽ 18 ⁾	2009	Italy	English	VI
54	Cervo, et al.⁽ 68 ⁾	2014	Brazil	English/Portuguese	VI
55	Tawfic, et al.⁽ 69 ⁾	2012	Oman	English	VI
56	Van Dinter Jr, et al.⁽ 70 ⁾	2013	USA	English	VI
Intracranial perforation
57	Wyler, et al.⁽ 71 ⁾	1977	USA	English	VI
58	Glasser, et al.⁽ 72 ⁾	1990	USA	English	VI
Intracranial perforation
59	Freij, Mullett⁽ 73 ⁾	1996	UK	English	VI
60	Ferreras, et al.⁽ 74 ⁾	2000	Spain	English	VI
61	Genu, et al.⁽ 75 ⁾	2004	Brazil	English	VI
Unplanned Tube Removal
62	Carrion, et al.⁽ 76 ⁾	2000	Spain	English	VI
63	Nascimento, et al.⁽ 77 ⁾	2008	Brazil	English/Portuguese and Spanish	VI
Pressure Injury Related to Fixation
64	Güimil, et al.⁽ 78 ⁾	2010	Spain	Spanish	VI
Misconnections
65	Ghahremani, Gould⁽ 79 ⁾	1986	USA	English	VI
66	Takeshita, et al.⁽ 80 ⁾	2002	Japan	English	VI
67	Roberts, Swart⁽ 81 ⁾	2007	UK	English	VI
68	Thorat, Wang⁽ 82 ⁾	2008	Singapore	English	VI
69	Millin, Brooks⁽ 83 ⁾	2010	USA	English	VI