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Table 2 Intervention effectiveness on treatment adherence

From: Efficacy of a multifactorial intervention on therapeutic adherence in patients with chronic obstructive pulmonary disease (COPD): a randomized controlled trial

Parameters APP ITT
Value (95% CI) Value (95% CI)
Control 0.489 0.324
Interv 0.795 0.481
RR 1.62 (1.35-1.93) 1.48 (1.07-2.04)
RBI 0.62 0.48
ABI 0.306 (0.216-0.396) 0.157 (0.007-0.307)
NNT 3.26 (2.52-4.62) 6.37 (3.25-142.8)
  1. RR: Relative risk; RBI: Relative benefit increase; ABI: absolute benefit increase; NNT: number needed to treat; CI: Confidential interval. APP: analysis per protocol; ITT: Intention to treat analysis.