Portuguese validation of the Symptom Inventory of the M.D. Anderson
                    Cancer Center

Kolankiewicz, Adriane Cristina Bernat; Domenico, Edvane Birelo Lopes De; Lopes, Luís Felipe Dias; Magnago, Tânia Solange Bosi de Souza

doi:10.1590/S0080-623420140000700006

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Revista da Escola de Enfermagem da USP

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Artigo Original • Rev. esc. enferm. USP 48 (6) • Dec 2014 • https://doi.org/10.1590/S0080-623420140000700006 copy

Portuguese validation of the Symptom Inventory of the M.D. Anderson Cancer Center^* * Extracted from the thesis “Relations among clinical symptoms, social support and the interference in the daily lives of cancer patients”, Post-graduate Program, Escola Paulista de Enfermagem, Universidade Federal de São Paulo, 2013

  Validación del inventario de síntomas del m.d. anderson cancer center para la lengua portuguesa

Authorship SCIMAGO INSTITUTIONS RANKINGS

Objective

To analyze the reliability and validity of the psychometric properties of the Brazilian version of the instrument for symptom assessment, titled MD Anderson Symptom Inventory - core.

Method

A cross-sectional study with 268 cancer patients in outpatient treatment, in the municipality of Ijuí, state of Rio Grande do Sul, Brazil.

Results

The Cronbach’s alpha for the MDASI general, symptoms and interferences was respectively (0.857), (0.784) and (0.794). The factor analysis showed adequacy of the data (0.792). In total, were identified four factors of the principal components related to the symptoms. Factor I: sleep problems, distress (upset), difficulties in remembering things and sadness. Factor II: dizziness, nausea, lack of appetite and vomiting. Factor III: drowsiness, dry mouth, numbness and tingling. Factor IV: pain, fatigue and shortness of breath. A single factor was revealed in the component of interferences with life (0.780), with prevalence of activity in general (59.7%), work (54.9%) and walking (49.3%).

Conclusion

The Brazilian version of the MD Anderson Symptom Inventory - core showed adequate psychometric properties in the studied population.

Neoplasms ; Signs and symptoms; Symptoms assessment; Validation studies; Oncology nursing

What is the intensity of your symptoms?	Main Components
Factor I	Factor II	Factor III	Factor IV	*h²^ * h2: Commonality**
1. Pain	0.251	0.010	0.249	0.613	0.501
2. Fatigue	0.166	0.131	0.156	0.680	0.532
3. Dizziness and nausea	0.139	0.766	0.060	0.239	0.666
4. Sleep problems	0.552	0.127	0.269	0.205	0.435
5. Distress (upset)	0.822	0.115	0.028	0.126	0.706
6. Shortness of breath	0.005	0.100	-0.024	0.785	0.627
7. Difficulty in remembering things	0.512	-0.001	0.245	0.076	0.328
8. Lack of appetite	0.123	0.712	0.164	0.071	0.554
9. Drowsiness	0.117	0.268	0.642	0.073	0.503
10. Dry mouth	0.053	0.161	0.696	0.229	0.566
11. Sadness	0.833	0.215	0.035	0.064	0.745
12. Vomiting	0.086	0.795	0.057	-0.014	0.642
13. Numbness and tingling	0.243	-0.084	0.702	0.032	0.560
Cronbach’s alpha	0.697	0.671	0.655	0.662	0.784 ^ Overall

MDASI Interferences	Factor 1	h² ^* * h2: Commonality
Activity in general	0.785	0.615
Mood	0.740	0.547
Work	0.731	0.534
Relationships	0.691	0.477
Walking	0.543	0.294
Enjoyment of life	0.726	0.528
Cronbach’s alpha	---	0.794^ Overall

MDASI ^* Note Rotation method: Varimax with Kaiser normalization	Prevalence		Mean	SD	Percentile
N	%	25	50	75
Symptoms
Pain	122	45.5	2.51	3.15	0	0	5
Fatigue	169	63.1	3.52	3.26	0	4	6
Feeling sick (nausea)	54	20.1	1.20	2.65	0	0	0
Sleep problems	99	36.9	2.40	3.43	0	0	5
Distress (upset)	146	54.7	3.36	3.64	0	2	6
Shortness of breath	50	18.7	0.99	2.37	0	0	0
Difficulty in remembering things	150	56.2	3.11	3.37	0	2	5
Lack of appetite	87	32.5	1.74	2.91	0	0	3
Drowsiness	126	47.2	2.63	3.21	0	0	5
Dry mouth	146	54.9	3.34	3.63	0	2	7
Sadness	120	45.1	2.71	3.47	0	0	5
Vomiting	18	6.7	0.45	1.82	0	0	0
Numbness and tingling	109	40.7	2.51	3.52	0	0	5
Interference
Activity in general	160	59.7	3.97	3.77	0	4	8
Mood	116	43.3	2.60	3.43	0	0	5
Work	147	55.1	3.77	3.87	0	3	8
Relationships	59	22.1	1.48	3.06	0	0	0
Walking	132	49.4	3.21	3.77	0	0	7
Enjoyment of life	86	32.1	2.07	3.41	0	0	5

Universidade de São Paulo, Escola de Enfermagem Av. Dr. Enéas de Carvalho Aguiar, 419 , 05403-000 São Paulo - SP/ Brasil, Tel./Fax: (55 11) 3061-7553, - São Paulo - SP - Brazil
E-mail: reeusp@usp.br

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[1] *Correspondence: Adriane Cristina Bernart Kolankiewicz . Rua do Comércio, 3000 - Bairro Universitário,  CEP: 98700-000 – Ijuí, RS, Brasil.  Email: adri.saudecoletiva@gmail.com