Effects of Full-Moon Definition on Psychiatric Emergency Department Presentations

Table 1

Frequencies and percentages for psychiatric ED presentations for the 12-hour model.

Characteristic	12 hr full-moon period (𝑛=170)			All other times (𝑛=9797)
	n	M (SD)	Percent	n	M (SD)	Percent
Age		36.18 (18.91)			36.06 (18.98)
Gender
Male	97		57.1	5289		54.0
Female	73		42.9	4507		46.0
Marital status
Married	21		12.5	1447		15.0
Single	100		59.5	5951		61.7
Divorced	13		7.7	613		6.4
Separated	6		3.6	513		5.3
Widowed	6		3.6	360		3.7
Common-law	22		13.1	767		7.9
Primary diagnosis
Dementia, delirium, and cognitive disorders	3		1.8	201		2.1
Substance-related disorders	75		44.1	3848		39.3
Schizophrenia and psychotic disorders	11		6.5	563		5.7
Mood disorders	17		10	961		9.8
Adjustment disorders	18		10.6	772		7.9
Anxiety disorders	29		17.1	2464		25.2
Somatoform and dissociative disorders	3		1.8	230		2.3
Eating disorders	0		0	42		0.4
Personality disorders	3		1.8	115		1.2
Childhood disorders	3		1.8	295		3
Others	8		4.7	305		3.1
Arrival mode
Ground ambulance	59		34.7	3387		34.6
Others	1		0.6	28		0.3
Police	12		7.1	643		6.6
Walk-in	98		57.6	5719		58.4
Triage code
Emergent	28		16.5	936		9.6
Less urgent	55		32.4	3027		30.9
Nonurgent	6		3.5	444		4.5
Resuscitation	1		0.6	33		0.3
Unavailable	0		0.0	1		0
Urgent	80		47.1	5356		54.7