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. 2008 Sep 19;8:187. doi: 10.1186/1472-6963-8-187

Table 5.

Comparison of questionnaire and sickness fund data (n = 48)

Retrospective
cost questionnaire
Sickness fund
data
Zero difference
(+/- 1)
ICC p*

Mean (SD) Mean (SD) n (%)
Days off work hospitalized 1.8 (7.45) 1.8 (7.5) 42 (87.5) 0.92 0.92
Days off work not hospitalized 25.3 (33.4) 29.1 (33.5) 25 (52.1) 0.94 0.03
Total days of sick leave 27.2 (35.2) 30.9 (34.9) 29 (60.4) 0.94 0.03

*Wilcoxon sign rank test.