Table 3

 Effect of NRT treatment for less than 12 months on relapse after 12 months of smoking cessation

StudyNRTPlaceboWeight (%)OR (95% CI)
Random effects test of overall effect: Z = 0.74, p>0.5.
*Numbers abstinent for 12 months who relapsed before final follow up/numbers abstinent for 12 months.
Blondal 19891/30*1/221.60.72 (0.04 to12.2)
Blondal 19975/202/133.81.83 (0.30 to 11.3)
Blondal 199913/323/135.92.28 (0.52 to 9.92)
Clavel 199723/5311/4316.72.23 (0.93 to 5.35)
Daughton 199911/504/197.71.06 (0.29 to 3.84)
Glavas 20033/131/92.12.40 (0.21 to 27.7)
Herrera 19957/374/176.60.76 (0.19 to 3.05)
Mikkelsen 19949/242/63.61.20 (0.18 to 7.93)
Richmond 19978/296/147.20.51 (0.13 to 1.93)
Stapleton 199814/337/148.20.74 (0.21 to 2.56)
Tonnesen 19886/237/125.90.25 (0.06 to 1.11)
Yudkin 200343/9127/6230.51.16 (0.61 to 2.22)
Total143/43575/2441001.11 (0.78 to 1.59)