Table 3

Unadjusted analyses. Sickness absence days over 6 months, comparison between UC and UC+MI or UC+SVAI

UCUC+MIUC+SVAI
nMean (SD)Median
(95% CI)
nMean (SD)Median
(95% CI)
nMean (SD)Median
(95% CI)
ITT17166 (41)62 (52–71)16959 (41)56 (43–70)169 57* (38) 49* (38–60)
Low/medium-risk group13563 (41)58 (48–69)13355 (41)45 (29–61)13455 (37)48 (37–59)
High-risk group3676 (40)79 (60–97)3673 (42)71 (52–90)3566 (40)61 (33–90)
Sensitivity analysis 113766 (41)62 (49–74)13958 (41)57 (43–71)13258 (39)53 (41–65)
Sensitivity analysis 216368 (40)65 (57–74)15862 (41)59 (47–71)15459 (37)54 (43–65)
  • ITT, intention-to-treat analysis (five missing: three in UC arm, one in UC+MI arm, one in UC+SVAI arm).

  • Sensitivity analysis 1: excluding pilot participants.

  • Sensitivity analysis 2: excluding participants who returned to work ≥50% within 1 week after baseline.

  • *Statistically significant difference (p<0.05) compared with UC only,tested with t-test or Mann-Whitney Wilcoxon test.

  • 95% CI, 95% confidence interval (estimated with 10 000 bootstrap resamples); MI, motivational interviewing; n, number of participants in analysis; SVAI, stratified vocational advice intervention; UC, usual case management.