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Table 2 Concurrent validity of the Workplace Sitting Breaks Questionnaire (SITBRQ) against accelerometer-based measures *

From: Workplace Sitting Breaks Questionnaire (SITBRQ): an assessment of concurrent validity and test-retest reliability

Questionnaire item

Spearman’s rho (95% CI)†

Frequency of breaks (breaks/hour)

0.24 (0.07 - 0.40)

Total duration of breaks (minutes/day)

0.05 (−0.12 - 0.22)

  1. *Accelerometer-based measures (total time in ≥100 cpm) were categorized to reproduce response scales of questionnaire items.
  2. †Spearman’s rank correlation between SITBRQ and accelerometer-based measures and its 95% confidence interval.
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BMC Public Health

ISSN: 1471-2458

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