study	t_thr	n1	n2	sex	age	
Gu2010	3.800	39	39	25.64	38	
Wang2017	2.971	24	24	0	20.8	
Wang2018	2.400	33	35	0	41.80	
ContrerasRodriguez2016	2.976	21	20	5	34.6	
Zhang2021	2.000	33	37	24.32	41.08	
Liu2019	2.048	15	15	0	47.3	
Qian2019	3.416	41	44	0	39	
