Predictors of spontaneous smoking cessation among Chinese men whose wives are pregnant.

This is an exploratory study to identify the predictors that Chinese men will spontaneously quit smoking during their wives' pregnancy. Smoking husbands who accompanied their non-smoking pregnant wives to an antenatal clinic were invited to complete a questionnaire soliciting information regarding their smoking behaviours, perceptions of support received from their wives, and motivating factors for quitting smoking. A total of 74 men were recruited. Two-thirds (67.6%) were daily smokers, had started smoking under the age of 18 (66.2%), and smoked 6-15 cigarettes (48.6%) a day. Nearly one-third of the smoking husbands (n = 50, 67.6%) reported that their wife was the person who provided them with the necessary main support in quitting. Nearly a quarter (18 out of 74, 24.3%) of the husbands indicated that they quit smoking during their wives' pregnancy. Those more likely to quit were the 'occasional smokers' (61.1% vs. 38.9%), those who craved cigarettes a few hours after getting up (0% vs. 100%), those who were confident in their ability to quit (77.8% vs. 22.2%), and those who had previously attempted to quit (88.9% vs. 11.1%). The level of negative support from wives to quit smoking was significantly related to men's quitting (55.6% vs. 44.4%). The results of this study identified the husbands most likely to spontaneously quit smoking during their wives' pregnancy as those who were occasional smokers, were confident about smoking cessation, and reported their wives as being bothered by smoke.