title: Associations of self-reported height loss and kyphosis with vertebral fractures in Japanese women 60 years and older: a cross-sectional survey.
abstract: Some vertebral fractures come to clinical attention but most do not. This cross-sectional survey aimed to clarify the associations of self-reported height loss and kyphosis with vertebral fractures. We enrolled 407 women aged 60-92 years who visited our orthopaedic clinic between June and August 2014 in our study. Inclusion criteria were lateral radiography followed by completion of a structured questionnaire in this study. The primary outcome was vertebral fracture diagnosed on lateral radiography and graded using a semiquantitative grading method, from SQ0 (normal) to SQ3 (severe). Self-reported kyphosis was defined as none, mild to moderate, severe. Self-reported height loss was defined as <4 cm or ≥4 cm. Number of SQ1 fracture was associated only with kyphosis. Self-reported severe kyphosis was significantly associated with increased numbers of ≥SQ2 vertebral fractures (p = 0.007). Height loss ≥4 cm was significantly associated with increased ≥SQ2 grade fractures (p < 0.001). Odds ratios (ORs) for fractures associated with mild-to-moderate and severe kyphosis were 2.1 [95% confidence interval 1.4 to 3.3) and 4.2 (1.8 to 9.5), respectively. OR for fractures associated with height loss ≥4 cm was 2.3 (1.4 to 3.7). Self-reported kyphosis may be useful for identifying Japanese women aged ≥60 years who have undetected vertebral fractures.
authors.affiliation: Center for Osteoporosis and Spinal Disorders, Kamimura Orthopaedic Clinic, 595-17 Kotobuki, Matsumoto 399-0021, Japan.
authors.forename: Mikio
authors.initials: M
authors.lastname: Kamimura
authors.affiliation: Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
authors.forename: Yukio
authors.initials: Y
authors.lastname: Nakamura
authors.affiliation: Department of Oral and Maxillofacial Radiology, School of Dentistry, Matsumoto Dental University, 1170 Gobara Hirooka, Shiojiri 399-0781, Japan.
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Sugino
authors.affiliation: Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
authors.forename: Shigeharu
authors.initials: S
authors.lastname: Uchiyama
authors.affiliation: Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Komatsu
authors.affiliation: Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
authors.forename: Shota
authors.initials: S
authors.lastname: Ikegami
authors.affiliation: Department of Orthopedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto 390-8621, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kato
authors.affiliation: Department of Oral and Maxillofacial Radiology, School of Dentistry, Matsumoto Dental University, 1170 Gobara Hirooka, Shiojiri 399-0781, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Taguchi
mesh_terms: D000368:Aged; D044466:Asian People; D001827:Body Height; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D007738:Kyphosis / Q000453:epidemiology*; D012044:Regression Analysis; D057566:Self Report; D016103:Spinal Fractures / Q000453:epidemiology*