Table 2.

Characteristics of studies excluded from the systematic review.

S. No.	Author and Year	Reason for exclusion
1.	Yang et al. (2018) [27]	Complete data isn't available in the manuscript.
2.	Chitguppi et al. (2017) [28]	Number of cases in the 1st decade not specified separately.
3.	Khandelwal et al. (2016) [29]	Patient was above 10 years.
4.	Singhvi et al. (2016) [30]	Number of cases in the 1st decade not specified separately.
5.	Prasad et al. (2014) [31]	Pediatric OSMF cases are not mentioned separately in the study.
6.	Deshpande et al. (2013) [32]	Patient was above 10 years.
7.	Gupta et al. (2013) [33]	Patient was above 10 years.
8.	Khandelwal et al. (2012) [34]	No cases of pediatric OSMF are discussed in the study.
9.	Ahmad MS et al. (2006) [35]	All the patients were above 10 years.
10.	Eric Oakley et al. (2005) [36]	High school students were examined who were above 10 years.
11.	Rajendran R (2004) [37]	Doesn't include cases of pediatric OSMF.
12.	Shah et al. (2002) [38]	Characteristics of areca nut chewing in primary school children have been mentioned but not the prevalence of OSMF.
13.	Yusuf et al. (2002) [39]	Patient was above 10 years of age.
14.	Farrand et al. (2001) [40]	Consists of details on areca nut chewing habit in children but not about OSMF caused by it.
15.	Ranganathan et al. (2000) [41]	Just one case of OSMF in HIV patients is mentioned but age not specified.
16.	Shah et al. (2001) [42]	Patient was above 10 years of age.
17.	Lu et al. (1993) [43]	Discusses areca nut habit in children but not OSMF.
18.	Anil S et al. (1993) [44]	Patient was above 10 years of age.