Role of endoscopy in caustic injury of the esophagus

Table 2 Variations in the degree of injury according to Zargar’s classification from articles published after year 2000 in adult patients

Author	Year	Patients	Grade I	Grade II	Grade III
Alipour Faz et al[4]	2017	313	42.5%	16.9%	20.1%
Ducoudray et al[7]	2016	n/a	n/a	n/a	39.7%
Cabral et al[11]	2012	315	12.7%	22.9%	29.2%
Chang et al[25]	2011	389	14.7%	39.3%	42.4%
Cheng et al[21]	2008	273	n/a	n/a	30%
Tohda et al[26]	2008	95	49.4%	26.3%	13.7%
Havanond et al[12]	2007	148	17%	41%	1%
Satar et al[27]	2004	37	67.5%	n/a	0%
Poley et al[18]	2004	179	40%	30%	30%
Rigo et al[28]	2002	210	32%	13%	6%

n/a: Not available.