Objectives: Recently, the subject of reopening schools has raised several concerns, especially on the possibility of new COVID-19 cluster cases. The parent's role is essential in this matter. Therefore, this study aims to understand the parents' knowledge, attitude, and behavior toward COVID-19 in Indonesia. Methods:  A cross-sectional study was conducted on 206 Indonesian parents. A 55-items questionnaire was used to assess the knowledge, attitude, and behavior of subjects. In this study, median split tests, Kruskal-Wallis, Cronbach's α, and Pearson correlation test were used. Results:  Subjects were found to have high levels of knowledge, especially in the knowledge of COVID-19 as a contagious viral disease (98.5%), and the necessity for children to maintain personal hygiene to prevent COVID-19 (98.5%). Subjects' attitudes were highest at understanding how to prevent COVID-19 (95.1%) and teaching children how to avoid COVID-19 (98.1%). Subjects' attitude was lowest at hearing the news of the death of COVID-19 scares them (72.8%), and on how their child(ren) are getting bored at home because of COVID-19 (69.9%). Subjects' are shown to have high levels of behavior in every question. This study found a significant correlation between socioeconomic status and subjects' knowledge (p = 0.007). Conclusion:  This study revealed a lack of understanding of prevention strategies among low-income households. Hence, there is a need for targeted messaging and health education in low-income settings that consider the challenges they may face when attempting their children to practice COVID-19 prevention if schools reopen. Keywords: COVID-19, Knowledge, Attitude, Behavior, Parents, Indonesia

Recognition of an overestimation of stunted children in Indonesia when using the World Health Organization Child Growth Standards (WHOCGS) led to the creation of the Indonesian Growth Reference Chart (IGRC) in 2005, with further improvement in 2018. This systematic review aimed to determine whether there is a difference in the diagnosis of stunting when using these two charts. This systematic review is registered in the PROSPERO database (CRD42021259934). Literature research was performed on PubMed, Science Direct, Medline, Scielo, Medrxiv, Research Square, SSRN, and Biorxiv to identify studies published from 2018 onwards that examined the comparison of IGRC and WHOCGS in detecting stunting. Three studies were included in this review. Pooled analysis showed that IGRC resulted in a lower prevalence of stunted and severely stunted children [risk ratio (RR): 0.28 (95% confidence intervals (CI): 0.15-0.51), p<0.0001, I 2 =97%]. Comparison between IGRC and WHOGCS for prevalence of normal height children showed that there was no difference, and this finding was not significant [RR: 1.56 (95% CI: 0.92-2.66), p=0.1, I 2 =100%], and the comparison for prevalence of tall children also showed that there was no difference when using IGRC or WHOGCS, and this finding was also insignificant [RR: 2.02 (95% CI: 0.78-5.20), p=0.14, I 2 =98%]. This meta-analysis showed that stunted and severely stunted Indonesian children are over-represented using WHOCGS. The difference between IGRC and WHOCGS has occurred because of the sample population, as IGRC includes children from all 33 provinces in Indonesia, better reflecting the growth of all children in Indonesia.