Reliability and validity of the Japanese version of the abbreviated Lubben Social Network Scale

Ayumi Kurimoto, Shuichi Awata, Takayoshi Ohkubo, Megumi Tsubota-Utsugi, Kei Asayama, Kouko Takahashi, Katsuko Suenaga, Hiroshi Satoh, Yutaka Imai

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)

Abstract

Aim: To investigate the reliability and validity of the Japanese version of the abbreviated Lubben Social Network Scale (LSNS-6), which is used worldwide as a screening tool for social isolation in elderly individuals. Methods: An interview-format questionnaire survey was given to 232 elderly community residents undergoing general health checkups. In addition to the Japanese version of the LSNS-6, other questionnaire items regarding social support, the Japanese version of the Zung Self-Rating Depression Scale (SDS), base attributes, and self-ratings of health, physical function and suicidal ideation were obtained. The internal consistency, test-retest, and interrater reliability of the Japanese version of the LSNS-6 were determined using the Cronbach a correlation, Spearman correlation, and intraclass correlation coefficients, respectively. Construct validity was investigated by comparison with the results of a previous study, while concurrent validity was determined in relation to SDS scores as well as questionnaire items on social support. Results: The Cronbach a coefficient was 0.82, the correlation coefficient for the test-retest was 0.92 (P< 0.001), and the intraclass correlation coefficient for interrater reliability was 0.96 (95% confidence interval [CI] 0.90-0.99). Mean scores on the Japanese version of the LSNS-6 increased as the number of household members increased (P = 0.033), but decreased among elderly individuals at risk of suicide (P = 0.026), and tended to decrease among those with a poor self-rated health score (P = 0.081). Scores on the Japanese version of the LSNS-6 had a significant negative correlation with SDS scores (P< 0.001) On 4 of the 5 questionnaire items on social support, and those without social support had significantly lower mean scores on the Japanese version of the LSNS-6 (P<0.05) than those with social support. Conclusions: We confirmed the reliability and validity of the Japanese version of the abbreviated LSNS-6.

Original languageEnglish
Pages (from-to)149-157
Number of pages9
JournalJapanese Journal of Geriatrics
Volume48
Issue number2
DOIs
Publication statusPublished - 2011

Keywords

  • Elderly
  • Reliability
  • Social isolation
  • Social network scale
  • Validity

ASJC Scopus subject areas

  • Geriatrics and Gerontology

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