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Hori H, Ueda N, Shiozuka H, Igata R, Miki T, Atake K, Takeuchi Y, Shirozu H, Ohara N, Konishi Y, Nagai H, Sakurai N, Kubota T, Yoshimura R. The Nursing Assessment of Medication Acceptance: the reliability and validity of a schizophrenia medication adherence scale. Ther Adv Psychopharmacol 2017; 7:11-16. [PMID: 28101319 PMCID: PMC5228715 DOI: 10.1177/2045125316672546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Many patients with schizophrenia have low medication adherence. There is, however, no objective assessment scale that can be used by nurses or caregiver specialists. The Nursing Assessment of Medication Acceptance (NAMA) was developed to assess patients' medication adherence. The aim of this study was to examine the validity and reliability of the NAMA in patients with schizophrenia. METHODS A total of 121 Japanese patients with schizophrenia were enrolled. All patients underwent evaluation using the NAMA and the Drug Attitude Inventory (DAI-10). Reliability was investigated using a test-retest method and a parallel-test method. To determine the test-retest reliability of the NAMA, we tested 101 schizophrenia patients twice, with the second assessment 2-4 weeks after the date of the first assessment. For validity verification, standard-related validity and the degree of concordance with the DAI-10 scores were measured. RESULTS The Cronbach's alpha value of the NAMA in schizophrenia was 0.88. The test-retest correlation coefficients were all between 0.53-0.74. The total scores and all subscores for the NAMA were significantly correlated, and the NAMA total scores were significantly correlated with the DAI-10 total scores. CONCLUSIONS The NAMA shows good reliability and validity in measuring medication adherence in schizophrenia.
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Affiliation(s)
- Hikaru Hori
- Department of Psychiatry, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 8078555, Japan
| | - Nobuhisa Ueda
- Tsutsumi Hospital, 2-1-1 Nabeta, Okagakitown, Ongagun, Fukuoka 8114224, Japan
| | - Hideki Shiozuka
- Tsutsumi Hospital, 2-1-1 Nabeta, Okagakitown, Ongagun, Fukuoka 8114224, Japan
| | - Ryohei Igata
- Tsutsumi Hospital, 2-1-1 Nabeta, Okagakitown, Ongagun, Fukuoka 8114224, Japan
| | - Tazuko Miki
- Yahatakosei Hospital, 3-12-12 Satonaka, Yahatanishi-ku, Kitakyushu, Fukuoka 8078555, Japan
| | - Kiyokazu Atake
- Department of Psychiatry, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 8078555, Japan
| | - Yuji Takeuchi
- Minamigaoka Hospital, 3-13-1 Imamachi, Kokurakit-ku, Kitakyushu, Fukuoka 8030862, Japan
| | - Hiroaki Shirozu
- Tsutsumi Hospital, 2-1-1 Nabeta, Okagakitown, Ongagun, Fukuoka 8114224, Japan
| | - Naotoshi Ohara
- Minamigaoka Hospital, 3-13-1 Imamachi, Kokurakit-ku, Kitakyushu, Fukuoka 8030862, Japan
| | - Yuki Konishi
- Department of Psychiatry, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 8078555, Japan
| | - Hiroshi Nagai
- Hiagari Hospital, 3-3-32 Hiagari, Kokurakita-ku, Kitakyushu, Fukuoka 8030831, Japan
| | - Noriaki Sakurai
- Department of Psychiatry, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 8078555, Japan
| | - Takanori Kubota
- Minamigaoka Hospital, 3-13-1 Imamachi, Kokurakit-ku, Kitakyushu, Fukuoka 8030862, Japan
| | - Reiji Yoshimura
- Department of Psychiatry, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 8078555, Japan
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