Table 2.

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

outcome parameter	test used		independent factor
		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

Outcome parameters are not significantly affected by moon phase.