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Table 2 Impact of contingency management on smoking habits and nicotine addiction

From: A randomized study of contingency management and spirometric lung age for motivating smoking cessation among injection drug users

 

Non-contingency management

Contingency management

p-value

6 month cotinine confirmed cessation, n (%)

1 (2)

3 (7)

0.36

6 month eCO confirmed cessation, n (%)

2 (4)

5 (11)

0.27

6 month self-reported cessation, n (%)

2 (4)

8 (18)

0.05

Use of nicotine replacement at 6 month visit, n (%)

2 (4)

7 (16)

0.16

Decreased Fagerstrom from 1st visit, n (%)

8 (18)

17 (39)

0.03

Total number of visitsa, mean (SD)

5.34 (1.83)

5.14 (1.84)

0.59

No. of visits reporting wanting to quit smokinga, mean (SD)

5.12 (1.85)

5.02 (1.83)

0.79

No. of visits reporting trying to quit smokinga, mean (SD)

1.94 (1.92)

2.42 (2.20)

0.25

No. of visits reporting cessationa, mean (SD)

0.10 (0.30)

0.58 (1.28)

0.01

No. of visits with eCO-confirmed cessationa, mean (SD)

0.06 (0.24)

0.38 (0.99)

0.03

  1. aNumber of visits is out of 6 possible.