Table 8.

Correlation as per Cernea classification with other studies

Study	Type 1 (%)	Type 2a (%)	Type 2b (%)	Not seen (%)
Cernea et al. 1992 [1]	63.0	17.0	20.0	0
Cernea et al. 1995 [3]	23.0	15.0	54.0	8.0
Aina et al. 2001 [4]	16.1	51.8	24.8	7.3
Bellantone et al. 2001 [5]	58.6	19.6	10.2	11.6
Ozlugedik et al. 2007 [6]	22.5	60.0	17.5	0
Mishra et al. 2007 [7]	28.2	53.8	10.3	7.7
Chuang et al. 2010 [8]	16.2	39.5	38.3	6.0
Pradeep et al. 2012 [9]	71.5	16.8	7.2	4.5
Athvale et al. 2013 [10]	38.2	60.0	1.8	0
Ravikumar et al. 2016 [11]	17.1	57.2	18.8	6.9
Menon et al. 2017 [12]	29	61	10	0
Ekhar et al. 2017 [13]	34.88	52.33	12.79	0
Present study	27.5	25	42.5	5