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Table 2 Construct validity of the BSFC-s: hypotheses 1 – 5

From: Subjective caregiver burden: validity of the 10-item short version of the Burden Scale for Family Caregivers BSFC-s

Hypothesis Variable Correlation P
1 MMSE rS = −.21 < .001
2 NOSGER Disturbing behavior rS = .53 < .001
3 Depression diagnosis (yes, no)a eta = .22 .006
4 Living together (yes, no)b eta = .19 .001
5 Care level (none, 1, 2, 3)c eta = .31 < .001
5 Barthel Index rS = −.45 < .001
5 Caregiving tasks at night (0, 1, >1)d eta = .39 < .001
5 Informal caregiving time (hours per day) rS = .54 < .001
  1. MMSE: Mini-Mental Status Examination.
  2. NOSGER: Nurses’ Observation Scale for Geriatric Patients.
  3. rS: Spearman’s rank correlation coefficient.
  4. Medians of the BSFC-s score for nominally or ordinally scaled variables.
  5. (testing for median differences: Mann–Whitney or Kruskal-Wallis test).
  6. aDepression diagnosis yes: median: 15.5 (n = 30; 18%).
  7. Depression diagnosis no: median: 8.5 (n = 138; 82%).
  8. bLiving together yes: median: 10.0 (n = 237; 68%).
  9. Living together no: median: 6.0 (n = 111; 32%).
  10. cCare level none: median: 6.0 (n = 199; 57%).
  11. Care level 1: median: 11.0 (n = 57; 16%).
  12. Care level 2: median: 15.0 (n = 66; 19%).
  13. Care level 3: median: 12.0 (n = 29; 8%).
  14. dCaregiving tasks at night no: median: 6.0 (n = 229; 65%).
  15. Caregiving tasks at night once: median: 12.0 (n = 51; 15%).
  16. Caregiving tasks at night several times: median: 16.0 (n = 71; 20%).
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