Matenda a Chronic Obstructive Pulmonary Disease (COPD) ndi matenda ofala kwambiri, omwe amapezeka kawirikawiri, olumala komanso omwe amapha kwambiri.Ndilofanana ndi "chronic bronchitis" kapena "emphysema" yomwe anthu wamba ankagwiritsa ntchito kale.Bungwe la World Health Organization linati chiwerengero cha imfa za COPD chili pa nambala 4 kapena 5 padziko lonse lapansi, zomwe zikufanana ndi chiwerengero cha imfa za AIDS.Pofika chaka cha 2020, chidzakhala chachitatu chomwe chimayambitsa imfa padziko lonse lapansi.

Chiwerengero cha COPD m'dziko langa mu 2001 chinali 3.17%.Kafukufuku wa miliri m'chigawo cha Guangdong mu 2003 adawonetsa kuti kuchuluka kwa COPD kunali 9.40%.Kuchuluka kwa COPD mwa anthu opitilira 40 ku Tianjin ndi 9.42%, yomwe ili pafupi ndi kuchuluka kwaposachedwa kwa 9.1% ndi 8.5% azaka zomwezo ku Europe ndi Japan.Poyerekeza ndi zotsatira za kafukufuku m'dziko langa mu 1992, chiwerengero cha anthu odwala COPD chawonjezeka katatu..M’chaka cha 2000 chokha, chiŵerengero cha anthu amene anamwalira ndi COPD padziko lonse chinafika pa 2.74 miliyoni, ndipo chiwerengero cha imfa chawonjezeka ndi 22 peresenti m’zaka 10 zapitazi.Chiwerengero cha COPD ku Shanghai ndi 3%.

Ziwerengero zaposachedwa za Unduna wa Zaumoyo zikuwonetsa kuti matenda opumira osatha amakhala oyamba kufa, pakati pawo ndi wachinayi m'matauni, komanso akupha matenda ambiri m'madera akumidzi.Makumi asanu ndi limodzi mwa anthu 100 aliwonse omwe ali ndi matenda amtunduwu amadwala matenda a m'mapapo, omwe ndi matenda owononga m'mapapo omwe amafooketsa kupuma kwa wodwalayo.Zimayamba makamaka chifukwa cha kusuta.Anthu opitilira zaka 40 ali pachiwopsezo chotenga matendawa ndipo sapezeka mosavuta., Koma matenda ndi imfa ndizochuluka.

Pakali pano, m'dziko langa muli odwala pafupifupi 25 miliyoni COPD, ndipo chiwerengero cha imfa ndi 1 miliyoni chaka chilichonse, ndipo chiwerengero cha anthu olumala ndi okwera 5-10 miliyoni.Malinga ndi kafukufuku yemwe anachitika ku Guangzhou, chiwopsezo cha kufa kwa COPD pakati pa anthu azaka zopitilira 40 ndi 8%, ndipo cha anthu opitilira zaka 60 ndi 14%.

Ubwino wa moyo wa odwala matenda obstructive m`mapapo mwanga matenda adzakhala kwambiri yafupika.Chifukwa cha kufooka kwa mapapu, ntchito ya kupuma kwa wodwalayo imawonjezeka komanso kugwiritsa ntchito mphamvu kumawonjezeka.Ngakhale atakhala kapena kugona pansi ndikupuma, wodwala wotere amamva ngati kunyamula katundu kukwera phiri.Choncho, kamodzi kokha odwala, osati ubwino wa moyo wa wodwalayo udzachepetsedwa, komanso mankhwala a nthawi yayitali ndi mankhwala okosijeni adzawononga ndalama zambiri, zomwe zidzabweretsa katundu wolemera kwa banja ndi anthu.Chifukwa chake, kumvetsetsa chidziwitso cha kupewa ndi kuchiza kwa COPD ndikofunikira kwambiri pakuwongolera thanzi la anthu.