Table 2.

Adapted DN4 questionnaire for telephone interview

Question			Adaptation
Interview of the patient: Q1: Does the pain have one or more of the following characteristics?
	Yes	No
(1) Burning			Not needed
(2) Painful cold			Not needed
(3) Electric shocks			Not needed
Interview of the patient: Q2: Is the pain associated with one of more of the following symptoms in the same area?
(4) Tingling			Not needed
(5) Pins and needles			Not needed
(6) Numbness			Not needed
(7) Itching			Not needed
Examination of the patient: Q3: Is the pain located in an area where the physical examination may reveal one or more of the following characteristics?
(8) Hypoesthesia to touch			Yes—The patient was asked to describe the feeling while touching with a cloth
(9) Hypoesthesia to prick			Yes—The patient was asked to describe the feeling while pricking with a tweezer
Examination of the patient: Q4: In the painful area, can the pain be caused or increased by:
(10) Brushing			Yes—The patient was asked to describe the feeling while brushing with a soft towel