Table 6

Sensitivity analysis of the friction costs (euros/patient/year) for those with a paid job

Netherlands (NL) (n=58) Mean (95% CI)*France (F) (n=40) Mean (95% CI)*Belgium (B) (n=15) Mean (95% CI)*
*95% CI assessed by bootstrapping; †difference between NL and F statistically significant (tested by bootstrapping the difference in values between countries); ‡difference between NL and B statistically significant (tested by bootstrapping the difference in values between countries).
Reference case†‡ (AS related days of sick leave)1257 (766 to 1801)427 (156 to 799)475 (138 to 885)
Total days sick leave†‡ (AS related and not related)1693 (1094 to 2833)466 (171 to 865)691 (389 to 1072)
Missing values: considered as no sick leave†‡1027 (634 to 1426)423 (143 to 814)419 (111 to 805)
Missing values: replaced by maximal sick leave†‡4745 (3727 to 6237)1767 (1038 to 2599)3564 (2557 to 4621)
Country-specific production value: Eurostat†1328 (802 to 1920)490 (156 to 930)755 (204 to 1469)
Country-specific production value national bureau of statistics†1527 (897 to 2253)669 (220 to 1250)739 (195 to 1402)
Days sick leave of outliers (>3 mo) replaced by country-specific group mean†577 (362 to 818)205 (91 to 344)365 (102 to 669)
Days sick leave of outliers (>6 mo) replaced by country-specific group mean†976 (577 to 1452)306 (129 to 515)475 (131 to 1120)