Mengetahui proporsi gangguan fungsi paru pada remaja jalanan perokok dan hubungan antara perilaku merokok dengan gangguan fungsi paru. Metode: Studi potong lintang pada 317 anak jalanan, usia 10-18 tahun, terdiri dari perokok dan bukan perokok. Uji fungsi paru dilakukan pada subjek dengan menilai FEV1/ FVC, FEV1, FVC, V50 dan V25. Hasil: Subjek perokok sebanyak 182 remaja jalanan (57,4%), sebagian besar merupakan perokok kadang-kadang (53%), lama merokok 1-2 tahun (54%), jenis rokok yang digunakan adalah rokok filter (58%), dan jumlah rokok yang dikonsumsi 1-10 batang per hari (93%). Rerata parameter fungsi paru subjek perokok lebih rendah dibandingkan bukan perokok, dengan perbedaan bermakna pada nilai FEV1 dan FVC (p<0,05). Rerata nilai FEV1 dan FVC subjek perempuan perokok berbeda bermakna dengan bukan perokok, begitupun dengan rerata nilai FVC subjek lelaki (p<0,05). Proporsi gangguan fungsi paru subjek perokok berbeda bermakna dengan bukan perokok (p=0,016). Terdapat hubungan antara jenis rokok dengan gangguan fungsi paru (p<0,001), dimana pengguna rokok kretek paling banyak mengalami gangguan. Terdapat hubungan antara derajat perilaku merokok dengan gangguan fungsi paru (p=0,046). Simpulan: Rerata parameter uji fungsi paru (FEV1 dan FVC) pada remaja jalanan perokok lebih rendah dibandingkan bukan perokok. Proporsi gangguan fungsi paru pada remaja jalanan perokok 26,5%, terdiri dari campuran (16,1%), restriktif (8,2%) dan obstruktif (2,2%). Jenis rokok dan derajat perilaku merokok memiliki hubungan dengan kejadian gangguan fungsi paru.

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Street children and smoking prevalence are highly increasing. Studies on pulmonary function among adolescent street children smokers are still limited with controversial result.

Objective: To determine proportion of pulmonary dysfunction among adolescent street children smokers and to evaluate relation between smoking behaviour with pulmonary dysfunction.

Methods: A cross sectional study among 317 street children, aged 10-18 years old, including smokers and non-smokers which were recruited consecutively. Subjects undergone pulmonary function test which measured FEV1/ FVC, FEV1, FVC, V50 and V25.

Results: Subject smokers were 182 children, most of them were occasional smokers (53%), smoking period around 1-2 years (54%), using filtered cigarettes (58%), and consuming 1-10 cigarettes per day (93%). Mean pulmonary function parameter values of smokers were lower than non-smokers, significant difference for FEV1 and FVC (p<0.05). Mean FEV1 and FVC between smoking and nonsmoking girls were significant difference, and also mean FVC of boys (p<0.05). There was significant difference in proportion of pulmonary function abnormalities between smokers and non-smokers (p=0.016). There was relation between types of cigarettes with pulmonary dysfunction (p<0.001), the abnormalities mostly impact to kretek smokers. There was relation between smoking behaviour with pulmonary function abnormalities (p=0.046).

Conclusion: Mean pulmonary function parameter values (FEV1 and FVC) of smokers were lower than non-smokers. Pulmonary dysfunction proportion among adolescent street children smokers was 26.5%, consist of combined disorder (16.1%), restrictive (8.2%) and obstructive (2.2%). There was relation between types of cigarettes and smoking behavior with pulmonary function abnormalities.