喫煙は関節リウマチのリスクを上げるか？

MEC必修総まとめ
Dr.一茶

193
喫煙習慣がリスク要因とならないのはどれか？
心筋梗塞
慢性閉塞性肺疾患
関節リウマチ
肺がん
胃潰瘍

これ　関節リウマチが答えとされているんですが。。
実際のところは、関節リウマチは喫煙がリスクファクターの病気のはず。。

http://medical.nikkeibp.co.jp/leaf/all/gakkai/acr2008/200810/508339.html
日経メディカルオンライン
　禁煙は関節リウマチの症状緩和に有効

However, smoking does not appear to be a risk factor for ulcer relapse once H. pylori has been

eradicated [44,45]. In one report, 256 patients with DU and 31 patients with GU were followed for up

to 18 months after ulcer healing and successful eradication of H. pylori [44]. Ulcer relapse occurred

in 3 of 83 smokers (3.6 percent) versus 4 of 204 nonsmokers (2 percent), a difference which was not

clinically significant. Smoking also did not influence recurrence of the H. pylori infection, which

was observed in 4.8 and 4.4 percent of smokers and nonsmokers, respectively.

UpToDate
Peptic ulcer disease: Genetic, environmental, and psychological risk factors and pathogenesis

CIGARETTE SMOKING — Cigarette smoking is a strong risk factor for the development of RA, particularly

in individuals with the shared epitope [25]. The magnitude of the overall effect of smoking was

evaluated in a retrospective report utilizing data on over 370,000 women from the Women's Health

Cohort Study [26]. Women who smoked at least 25 cigarettes a day for more than 20 years had a

relative risk of 1.4 for developing RA compared to those who had never smoked [26]. Multivariate

analysis revealed that the duration of use, but not the number of cigarettes smoked per day, was

significantly associated with increased risk.A similar association with smoking and RA was noted in

monozygotic and dizygotic twins discordant for RA [27], and in a prospective population-based study

of incident RA in women [28].

Epidemiology, risk factors for, and possible causes of rheumatoid arthritis