A Randomized Controlled Trial of Two Different Lengths of Nicotine Replacement Therapy for Smoking Cessation

Table 2

NRT use among subjects in the two groups.

Duration of NRT use	A1 (𝑛=284)	A2 (𝑛=278)
2 weeks or more	41.5*	53.6*
4 weeks or more	22.9	24.8
8 weeks or more	7.4	6.8

Note: all of those who were not available at followup were considered as nonusers.
*Significant difference between the two study groups (Chi-square = 0.54, df=1, 𝑃=0.004).