GPT and thromboangiitis obliterans: Both DAO and TAO were associated with higher LAT-arch height values (Fig. 5), increased AOFAS levels (SMD 33.48 and 95%CI 28.14 to 38.82 for DAO; SMD 44.30 and 95%CI 32.58 to 56.02 for TAO; Fig. 10), and lower ALT-TC levels (SMD − 6.71 and 95%CI − 12.54 to − 0.89 for DAO; SMD − 11.91 and 95%CI − 17.96 to − 5.87 for TAO; Fig. 7).