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Covid Lockdown Made Early Puberty Cases Rise by 3.6 Times: Pune Study

Researchers of a Pune-based hospital have discovered cases of an accelerated onset of puberty, especially among girls, during the Covid lockdown.

A study by researchers at a Pune-based hospital has found that the early puberty incidences, especially in girls, have increased 3.6 times during the Covid lockdown. The exact cause is yet to be identified but the possible reasons for idiopathic central precocious puberty (iCPP) in children as young as eight-nine during the pandemic can be many, including stress, increased use of mobile phones, along with increasing use of sanitizers, researchers at the Jehangir Hospital said.

In the study, published in the Journal of Paediatric Endocrinology and Metabolism recently, researchers found that 155 (5.1 percent) of the 3,053 referrals to the hospital were related to precocity as opposed to 59 (1.4 percent) of 4,208 before the pandemic. “Increased use of mobile phones, late sleeping hours, stress, anxiety, depression, all are known to cause precocious puberty and all these factors have been prevailing during the lockdown,” said Anuradha Khadilkar, deputy director and consultant paediatrician, Growth and Paediatric Endocrinology Unit, at Jehangir Hospital. 

 “Since sanitizers were extensively used during the lockdown, it is possible that increased exposure to triclosan may have stimulated early puberty in children. However, more studies are required to confirm this association,” Khadilkar, the corresponding author of the study, told PTI. Triclosan is an antibacterial and antifungal agent present in products such as toothpaste, soaps, detergents, sanitizers, toys, and surgical cleaning treatments. It is recognized as an endocrine-disrupting chemical (EDC) that is known to alter the timing and progression of puberty, the researcher added. 

 India went into lockdown in March 2020. Schools in Maharashtra, as well as other parts of the country, began to open in a phased manner between October to December 2021. The researchers analyzed two groups: a pre-Covid lockdown group from September 1, 2018, to February 29, 2020, and another from March 1, 2020, to September 30, 2021.  “A 3.6 times increase in the referrals for precocious puberty was observed during the Covid lockdown period. Amongst these, a significant increase in the referrals was seen among girls,” the authors of the study noted.  

“Restriction of outdoor activity, increased screen time, consumption of high-calorie foods, and binge eating habits resulting in increased obesity may result in an earlier onset and accelerated puberty,” it said.  


 Dr. Chetan R Mundada, lead paediatric intensivist at Hyderabad’s Yashoda Hospitals, added that chemicals found in personal care products such as perfumes, deodorants, toothpastes and makeup kits have been linked to early puberty especially in girls. “The pandemic has led to a drastic increase in the use of sanitizers. To make them more appealing with a pleasant odor, chemicals like phthalate are added... (this) may lead to hormonal imbalance,” Mundada, who was not involved in the study, told PTI. 

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 “The pandemic has also led to a more sedentary lifestyle with increased junk food consumption, increased obesity. All these factors together can lead to early puberty and future complications related to it,” he added. Dr. Vaman Khadilkar, one of the authors of the study and senior pediatric endocrinologist, said the prevalence of precocious puberty --  children physically turning into adults too soon - was on the rise in pre-Covid times as well. During the lockdown months, however, there was a sudden spike.

 "Initially we thought that since parents are at home, they are observing their kids more carefully  and that is why  they are coming to consult doctors more often. But this was untrue as we saw an actual rise in the incidence," Varman Khadilkar, also from  Jehangir Hospital, told PTI. Recent studies have reported observations similar to the latest research from Pune. 

 A study from Italy reported a 108 per cent increase in the referrals for suspected precocious puberty during the lockdown in the country. It demonstrated a significant (2.5 times) increase in the prevalence of precocity among girls, but no significant increase among boys. A study in Turkey also found a doubling in the number of Turkish children (girls) diagnosed with iCPP in the lockdown period as compared to the yearly diagnosis of iCPP in the previous three years.

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