The Patient Pain Questionnaire (PPQ)

Abstract

The Patient Pain Questionnaire (PPQ) is a 16-item ordinal scale developed to assess a cancer patient’s knowledge of and personal experience with managing chronic cancer pain. The instrument is divided into two primary subscales: Knowledge (9 items) and Experience (7 items). Designed for use in both clinical practice and research, the PPQ assists healthcare professionals in evaluating pain management effectiveness and identifying educational needs. It is often utilized in conjunction with the related Family Pain Questionnaire (FPQ) to obtain a comprehensive view of the patient and caregiver perspective, which is crucial for overall patient adjustment and palliative care planning. Initial psychometric testing established strong content validity and acceptable reliability.

Keywords

Cancer Pain, Pain Management, Oncology, Patient Knowledge, Patient Experience, Palliative Care, Chronic Pain, Ordinal Scale, City of Hope, Pain Assessment.

Authors

The City of Hope Pain & Palliative Care Resource Center, Betty R. Ferrell.

Purpose

The primary purpose of the Patient Pain Questionnaire (PPQ) is to provide a standardized, quantitative measure of a cancer patient’s understanding and lived experience related to chronic pain. This information is critical for clinicians and researchers aiming to formulate or evaluate effective pain management programs and educational interventions.

By assessing both cognitive knowledge (e.g., understanding of addiction, dosing schedules) and subjective experience (e.g., current pain levels, distress), the PPQ allows healthcare providers to identify specific barriers to effective pain control. The tool is instrumental in achieving the goals of palliative care by buffering patients against both physical and mental pain, contributing to better patient adjustment and overall quality of life.

Construct

The PPQ measures two distinct psychological constructs relevant to effective pain management in the oncology setting: Knowledge and Experience.

The Knowledge subscale, consisting of nine items, focuses on objective facts and common misconceptions surrounding pain treatment. These items gauge the patient’s understanding of pharmacological principles, such as the importance of scheduled medication administration versus dosing only when pain is severe, and the reality versus myth of opiate addiction. The Experience subscale, comprising seven items, captures the patient’s current subjective state, including pain intensity, the degree of pain relief received, the level of distress caused by the pain, perceived self-efficacy in pain control, and future pain expectations.

Validity

Initial validity testing for the PPQ demonstrated strong evidence of content validity. The Content Validity Index (CVI) was calculated at 0.95, indicating a high level of agreement among expert reviewers that the instrument’s items comprehensively and appropriately represent the domain of patient pain knowledge and experience. This robust CVI supports the use of the PPQ as a clinically relevant measure in oncology and pain research.

Reliability

The reliability of the PPQ was established through a series of psychometric analyses. The internal consistency for the overall scale was acceptable, evidenced by a Cronbach’s Alpha coefficient of 0.74. This figure suggests that the items within the questionnaire are reasonably homogeneous and consistently measure the underlying constructs of pain knowledge and experience.

Furthermore, test-retest reliability, which measures the stability of scores over time, was established with a correlation coefficient (r) of 0.65. This moderate coefficient indicates that while the subjective nature of pain experience may lead to some fluctuation, the instrument provides a generally stable measure suitable for tracking changes in patient status or evaluating educational program effects over time.

Factor Analysis

A formal factor analysis was established during the developmental phase of the PPQ and its companion instrument, the FPQ. The analysis was performed using data collected from family caregivers (N=219). This analysis confirmed the multidimensional structure of the constructs being measured, justifying the separation of the instrument into the distinct Knowledge and Experience subscales. This structural confirmation is vital for interpreting the data and ensuring that interventions can be targeted specifically to the patient’s cognitive understanding or subjective suffering.

Instrument

Test Type: Ordinal Inventory/Self-Report Questionnaire

Format: 16 items, utilizing a numerical scale (typically 0 to 10) with word anchors to indicate the degree of agreement/disagreement or intensity/distress. Scoring is standardized such that 0 represents the most positive outcome and 10 represents the most negative outcome.

Language Available: English, Spanish (Cuestionario Sobre el Dolor del Paciente)

Population Group: Patients with Chronic Pain (specifically Cancer Patients)

Age Group: Not explicitly specified, generally adult oncology patients.

Population Details: The instrument is designed for use with individuals suffering from chronic cancer pain who are undergoing treatment or receiving palliative care.

Test Methodology: Can be administered by mail or in person. Patients are instructed to read each statement and circle a number on the scale (0-10) corresponding to their degree of agreement/disagreement or their current pain status.

Keywords

Psychometrics, Content Validity Index, Test-Retest Reliability, Cronbach’s Alpha, Pain Knowledge, Pain Experience, Family Pain Questionnaire, City of Hope, Oncology Nursing.

Authors

Author ORCID Identifier: Not provided in source content.

Affiliation Email addresses: Not provided in source content.

Correspondence Address: Correspondence is typically handled through the City of Hope Pain & Palliative Care Resource Center, or directly with Betty R. Ferrell, RN, PhD, FAAN, Research Scientist (as listed in the source material).

Permissions & Fee and Test Year

The authors, notably Betty R. Ferrell, explicitly grant permission to researchers and clinicians to duplicate and utilize the PPQ instrument for research and clinical practice to evaluate pain management programs or gain information about patient knowledge and experience. No specific fee is mentioned or required for usage. The foundational development and publication of the PPQ and related psychometric studies date primarily to the early 1990s (1991-1993).

Reference’s

1. Ferrell BR, Ferrell B, Rhiner M, Grant M. “Family Factors Influencing Cancer Pain”. Post Graduate Medical Journal, 1991; 67 (Suppl 2):S64-S69.
2. Ferrell BR, Rhiner M, Cohen M, Grant M. “Pain as a Metaphor for Illness. Part I: Impact of Cancer Pain on Family “. Oncology Nursing Forum, 1991; 18(8):1303-1309.
3. Ferrell BR, Cohen M, Rhiner M, Rozak A. “Pain as a Metaphor for Illness. Part II: Family Caregivers’ Management of “. Oncology Nursing Forum, 1991; 18(8):1315-1321.
4. Ferrell BR, Rhiner M, Ferrell B. “Development and Implementation of a Pain Education Program. Cancer, 1993; 72(11):3426-3432.
5. Ferrell BR, Ferrell B, Ahn C, Tran K. “Pain Management for Elderly Patients with Cancer at Home.” Cancer, 1994; 74(7):2139-2146.
6. Ferrell BR, Borneman T, Juarez G. “Integration of Pain Education in Home Care.” Journal of Palliative Care, 1998; 14(3):62-68.
7. Ferrell BR, Rivera LM. Cancer Pain Education for Patients.” Seminars in Oncology Nursing, 1997; 13(1):42-48.
8. Ferrell BR, Juarez G, Borneman T, ter Veer A. “Pain management in home care.” Journal of Hospice and Palliative Care Nursing Association, 1999.

Items of the The Patient Pain Questionnaire (PPQ)

Below are a number of statements about cancer pain and pain relief. Please circle a number on the line to indicate your response.

Knowledge

1. Cancer pain can be effectively
2. Pain medicines should be given only when pain is severe.
3. Most cancer patients on pain medicines will become addicted to the medicines over
4. It is important to give the lowest amount of medicine possible to save larger doses for later when the pain is
5. It is better to give pain medications around the clock (on a schedule) rather than only when needed.
6. Treatments other than medications (such as massage, heat, relaxation) can be effective for relieving
7. Pain medicines can be dangerous and can often interfere with breathing.
8. Patients are often given too much pain medicine.
9. If pain is worse, the cancer must be getting

Experience

10. Over the past week, how much pain have you had?
11. How much pain are you having now?
12. How much pain relief are you currently receiving?
13. How distressing is the pain to you?
14. How distressing is your pain to your family members?
15. To what extent do you feel you are able to control your pain?
16. What do you expect will happen with your pain in the future?

Cuestionario Sobre el Dolor del Paciente (sigla en inglés: P.P.Q.)

A continuación se encuentran un número de afirmaciones sobre el dolor ocasionado por el cáncer y su alivio. Favor de marcar uno de los números en el renglón con un círculo para indicar su respuesta.

Conocimiento

1. El dolor del cáncer puede aliviarse
2. Las medicinas para aliviar el dolor se deben de dar únicamente cuando el dolor sea
3. La mayoría de los pacientes con cáncer que toman medicamentos para aliviar el dolor a la larga quedarán adictos a los medicamentos.
4. Es importante dar la menor cantidad posible de la medicina con fines de guardar la las las dosis más altas para cuando empeore el dolor en un
5. Es preferible dar los medicamentos para aliviar el dolor a base continua (según un horario) en vez de sólo cuando estos sean
6. Otros tratamientos ademas de los medicamentos (tales como masajes, tratamientos de calor, relajación) pueden ser eficaces para aliviar el dolor.
7. Los medicamentos contra el dolor pueden ser peligrosos y con frecuencia pueden interferir con la respiración.
8. A los pacientes con frecuencia les dan demasiados medicamentos para aliviar el
9. Si el dolor empeora, el cáncer deberá estar

Experiencia

10. Durante esta última semana, ¿cuánto dolor ha tenido?
11. ¿Cuánto dolor está sufriendo/padeciendo en la actualidad?
12. ¿Cuánto alivio al dolor está recibiendo en la actualidad?
13. ¿Cuánta aflicción/angustia le causa el dolor?
14. ¿Cuánta aflicción/angustia le causa su dolor a los miembros de su familia?
15. ¿Hasta qué punto estima usted que le es posible controlar su dolor?
16. ¿Qué piensa usted pasara con su dolor en un futuro?