Table 1

Characteristics of the included studies

AuthorCountryType of studyTotal patientsSex (male)Median ageCancerNon-cancer
TotalDeadTotalDead
Chinese CDC51ChinaRetrospective, multicenter cohort20,812NANA107620,705498
Miyashita et al.52USARetrospective, multicenter cohort5,688NANA334375,354518
Goyal et al.53USARetrospective, multicenter cohort39323862.223NA370NA
Baker et al.54UKRetrospective, single-center cohort31617375331028371
Benelli et al.55ItalyRetrospective, single-center cohort41135970.533937863
Rossi et al.56ItalyRetrospective, multicenter cohort2,6531,32863.2301442,352173
Nikpouraghdam et al.57IranRetrospective, single-center cohort2,9641,955561712,947238
Borobia et al.58SpainRetrospective, single-center cohort2,2261,074613851391,841321
Vasco et al.59PortugalRetrospective, multicenter cohort20,2708,370NA6034719,667455
Duanmu et al.60USARetrospective, single-center cohort10056453NA97NA
Gold et al.61USARetrospective, multicenter cohort3051516012NA293NA
Sami et al.62IranRetrospective, single-center cohort49029956.615NA475NA
Regina et al.63SwissRetrospective, single-center cohort2001207026NA174NA
Ji et al.64KoreaRetrospective, multicenter cohort5,1722,28942364NA4,808NA
Joharatnam-Hogan et al.65UKRetrospective, multicenter cohort5231NA266266
Stroppa et al.66ItalyRetrospective, single-center cohort56NANA259315
Dai et al.41ChinaRetrospective, multicenter cohort641302NA10512536NA
Mehta et al.67USARetrospective, single-center cohort218127NA2186100
Yang et al.68ChinaRetrospective, single-center cohort522863521100
Total63,01916,9002,68239260,3372,348

NA, not available.