Acupuncture for Smoking Cessation in Hong Kong: A Prospective Multicenter Observational Study

Table 2

Effects of acupuncture on exhaled breath CO and number of cigarettes smoked per day.

Outcome measures	Before	1st week	2nd week	8th week	26th week	52nd week
Exhaled breath carbon monoxide	15.38 ± 9.82	8.79 ± 7.89	7.55 ± 6.65	6.99 ± 6.27	6.23 ± 6.79	5.45 ± 5.77
Number of cigarettes smoked per day	17.67 ± 7.96	6.23 ± 6.31	4.86 ± 5.47	4.34 ± 5.43	8.82 ± 7.73	10.11 ± 7.48