Table 2 Impact of lunar cycle on intra-and postoperative morbidity, mortality and long-term survival

day of lunar cycle vs. each other

4 moon phases vs. each other

waxing vs. waning moon

full moon vs. remaining phases

Survival

log-rank

P = .459

P = .646

P = .631

P = .110

operative complications

χ 2

P = .963

P = .430

P = .579

P = .941

post-OP mortality

χ 2

P = .885

P = .952

P = .756

P = .920

post-OP morbidity

χ 2

P = .846

P = .910

P = .967

P = .970