Table 1

Characteristics of Prevalence Studies

Study	Year	Country	Specialty	Level of Training	N	Response Rate (%)	Definition of Stalking	Prevalence (%)	Psychological Consequences Reported
Morgan and Porter¹⁸	1999	UK	Psychiatry	Trainee	100	85	Not given	4.7	No
Kowalenko et al.¹⁹	2005	USA	Emergency medicine	Attending	250	70.8	Unwanted or threatening contact by the patient or someone representing the patient in a persistent manner over time.	3.5	No
Gale C et al.²⁷	2006	New Zealand	General practice	Attending	2308	52.2	Not given	1.9	No
Hughes et al.²⁰	2007	New Zealand	Psychiatry	Attending	550	26.5	Unwanted communications or repeated contacts (on more than 10 occasions) persisting for a period of more than 4 weeks and that created fear or anxiety for the clinician.	68.5	Yes
McIvor et al.²¹	2008	UK	Psychiatry	Attending, trainee	324	61	Two or more episodes where a psychiatric patient initiated inappropriate contact outside the clinical setting that caused the psychiatrist concern.	20.7	Did not ask, but reported respondents' free text comments
Allnut et al.²²	2009	Australia, New Zealand	Plastic surgery	Attending	190	54.2	A constellation of behaviors which one individual inflicts on another in the form of unwanted intrusions and/or communications … on two or more occasions to the extent that they felt fearful.	4.5	Yes
Gale et al.²⁴	2009	New Zealand	Psychiatry	Attending	308	63.9	Not given	4.6	No
Behnam et al.²³	2011	USA	Emergency medicine	Attending, trainee	N/A	Not determinate	Not given	1.5	No
Abrams and Robinson²⁵	2011^*	Canada	GP, IM, surgery, Psychiatry, EM, pediatrics, anesthesiology, nuclear medicine, OB/Gyn, other	Attending	3159	37.6	Willful, malicious, and repeated contacts; following; or harassing by a patient, ex-patient or patient's relative, partner, or ex-partner.	14.9	Yes³¹
Abrams and Robinson, Part II³¹	2013^*						Same as Abrams and Robinson²⁵
Forrest et al.²⁶	2011	Australia	General Practice	Attending	3063	26.3	Not given	3.6	No
Whyte et al.²⁸	2011^*	UK	Psychiatry	Attending, trainee	10429	25	At least 10 unwanted intrusions occurring over at least 2 weeks.	2	Yes^28,29
Maclean et al.²⁹	2013^*						Same as Whyte et al.²⁸
Nwachukwu et al.³⁰	2012	Ireland	Psychiatry	Attending, trainee	442	62	Repeated [unpleasantly intrusive] acts … which create apprehension.	25.1	Yes

↵* There were two parts, published in separate articles, for the Abrams^25,31 and Whyte.^28,29 studies.