Table 1

Unadjusted and adjusted mean differences between the BA and usual care groups by time point

Mean difference (95% CI)1 month3 month12 monthOver 12 months
OutcomeUnadjustedAdjusted*UnadjustedAdjusted*UnadjustedAdjusted*Adjusted*
Patient Health Questionnaire-9 (primary outcome)−1.44 (−3.66 to 0.77)−0.50 (−2.01 to 1.01)−0.39 (−2.70 to 1.91)0.19 (−1.36 to 1.75)−0.59 (−2.92 to 1.74)−0.70 (−2.61 to 1.20)−0.41 (−1.65 to 0.83)
Generalised Anxiety Disorder-7−0.54 (−2.52 to 1.44)0.20 (−1.33 to 1.73)−0.16 (−2.09 to 1.78)0.31 (−1.08 to 1.70)−0.97 (−2.93 to 0.99)−0.67 (−2.31 to 0.97)−0.18 (−1.35 to 0.98)
De Jong Gierveld scale (total)0.13 (−1.14 to 1.41)0.28 (−0.51 to 1.06)−0.86 (−2.14 to 0.43)−0.87 (−1.56,–0.18)0.07 (−1.31 to 1.45)−0.39 (−1.43 to 0.65)−0.32 (−0.97 to 0.34)
De Jong Gierveld Emotional Loneliness Subscale0.07 (−0.68 to 0.81)0.14 (−0.39 to 0.67)−0.36 (−1.09 to 0.36)−0.37 (−0.85 to 0.11)0.19 (−0.70 to 1.08)−0.05 (−0.74 to 0.65)−0.16 (−0.57 to 0.26)
De Jong Gierveld Social Loneliness Subscale0.07 (−0.68 to 0.81)0.14 (−0.42 to 0.69)−0.50 (−1.22,–0.23)−0.50 (−1.00,–0.01)−0.12 (−0.84 to 0.60)−0.33 (−0.88 to 0.22)−0.14 (−0.55 to 0.26)
Short Form-12v2 (Physical Component Score)†1.40 (−3.42 to 6.22)0.34 (−4.17 to 4.85)0.81 (−4.16 to 5.77)0.11 (−4.46 to 4.67)−0.04 (−5.39 to 5.30)−0.53 (−4.15 to 3.09)−0.27 (−2.73 to 2.18)
Short Form-12v2 (Mental Component Score)†3.60 (−1.17 to 8.37)1.91 (−2.64 to 5.15)2.09 (−2.48 to 6.65)1.26 (−2.64 to 5.15)2.17 (−2.54 to 6.89)3.61 (−0.22 to 7.44)3.22 (0.22 to 6.21)
  • *Adjusted for the baseline score of the outcome.

  • †Positive difference indicates better health in intervention group.

  • GAD-7, Generalised Anxiety Disorder 7; PHQ-9, Patient Health Questionnaire 9; SF-12, Short Form 12.