epidemiology Prevalence of ibs in some countries Country Diagnostic criteria Age(yr) Sampling Number prevalence (% Male Fe male Total China 18~70 Random 2486 0.8 48.8(Average age) 231 25.0 ≥16 Random 271 3.2 Random 20.6 India M anning 37. 2( Average age) 2549 7.9 6.9 Adult 3.4 Thailand M Adult Random 4.4 Denmark Europe M anning 30~60 4851 7.5 Sweden 18~79 7.4 13.3 12.5 9~11 449 19.6 Dutch 48. 0(Average age) 9.0 M anning 20~69 22.9 16.8 1200 20~79 Random 13.6 Africa gera Medical students Australia Oceania New Zealand M Random Born from April 1972 1037 12,7 me lI America USa 643 20.4 9.0
Prevalence of IBS in some countries Epidemiology Country Diagnostic criteria Age (yr) Sampling Number prevalence Male Female Total Random Random Random Random Random Random Random Random Non-Random Random Random Random Asia Europe Africa Oceania America China Japan Singapore Bengal India Iran Thailand Denmark Sweden Russia Dutch England France Spain Italy Nigeria Australia New Zealand USA Brazil (Average age) Average age) Adult Adult (Average age) Adult Adult Medical students Adult Born from April 1972 to May 1973 Adult
临床表现特点 腹痛、腹部不适是最核心的症状 与排便相关是最突出的特点 排便后减轻 正重程度? 部位? Hahn BAet al. Aliment pharmacol Ther. 1997 11: 553 潘国宗,等中华内科杂志,199938:81
临床表现特点 ⚫ 腹痛、腹部不适是最核心的症状 ⚫ 与排便相关是最突出的特点 －排便后减轻 －严重程度？ －部位？ Hahn BA,et al. Aliment Pharmacol Ther, 1997 11:553. 潘国宗,等.中华内科杂志, 1999 38: 81
排便习惯改变 排便次数增加 排便次数减少 ●粪便性状改变 变干 变稀 *与无腹痛、腹部不适时比较
⚫ 排便习惯改变 －排便次数增加 －排便次数减少 ⚫ 粪便性状改变 －变干 －变稀 *与无腹痛、腹部不适时比较
BS诊断标准的进展 19781984199219992006 anning UIS 标准 标准 标准 标准 标准
IBS诊断标准的进展 Manning 标准 Kruis 标准 罗马I 标准 罗马Ⅱ 标准 罗马Ⅲ 标准 1978 1984 1992 1999 2006
Initial assessment a Consider assessment for Ibs if any of these symptoms have been present for at least 3 month A bdominal pain or discomfort Bloating hange in bowel habit
◼ Consider assessment for IBS if any of these symptoms have been present for at least 3 months Initial assessment • Abdominal pain or discomfort • Bloating • Change in bowel habit