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Table 4 Mixed Level Model Results for the Total Leg Score

From: SUPERIOR SVG: no touch saphenous harvesting to improve patency following coronary bypass grafting (a multi-Centre randomized control trial, NCT01047449)

Time No Touch
LS Means
(95% CI)
Conventional
LS Means
(95% CI)
Adjusted difference (No Touch – Conventional)* P-value for treatment difference* P-value for interaction (treatment by time)
30 Days 6.44 (5.64–7.25) 3.86 (3.06–4.67) 2.58 (0.920–4.24) 0.0002  
3 Months 4.49 (3.67–5.32) 2.20 (1.35–3.04) 2.30 (0.58–4.02) 0.0021  
1 Year 2.77 (1.96–3.58) 1.65 (0.82–2.48) 1.12(−0.57–2.81) 0.407  
      0.094
  1. Legend: The Total Leg Scores were higher in the NT patients compared to the Control patients, according to linear mixed model analysis. The reported results are the least square means. The range for the Total Leg Score is 0–57 (see Additional file 2 for more details)
  2. *Confidence intervals and p-values adjusted for multiple comparisons using Tukey’s method