약년자 폐암 환자의 임상적 특성

Clinical Characteristics of Young Patients with Lung Cancer

  • Kwak, Jin-Young (Department of Internal Medicine, Presbyterian Medical Center) ;
  • Kim, Kwi-Wan (Department of Internal Medicine, Presbyterian Medical Center) ;
  • Ryoo, Baek-Yeol (Department of Internal Medicine, Korea Cancer Center Hospital) ;
  • Choi, Sung-Joon (Department of Internal Medicine, Korea Cancer Center Hospital) ;
  • Kim, Young-Ho (Department of Internal Medicine, Korea Cancer Center Hospital) ;
  • Kim, Dae-Han (Department of Internal Medicine, Korea Cancer Center Hospital) ;
  • Son, Hyun-Bae (Department of Internal Medicine, Korea Cancer Center Hospital) ;
  • Lee, Jae-Chul (Department of Internal Medicine, Korea Cancer Center Hospital)
  • 발행 : 2001.12.30

초록

연구배경 : 약년자 폐암 환자는 일반 폐암 환자들과는 다른 임상적 특성들이 보고되고 있으며, 생존율에 있어서도 차이가 있다는 보고가 있어왔다. 이에 저자들은 약년자 폐암 환자의 임상적 특성과 생존율 및 생존율에 미치는 인자들을 확인하고자 하였다. 방 법 : 1992년 1월부터 1998년 12월까지 원자력병원에서 원발성 폐암으로 진단된 환자 중 40세 이하의 약년자 폐암 환자 120명을 대상으로 환자의 특성 및 생존율을 분석하였다. 대조군은 같은 기간동안 폐암으로 진단된 41세 이상의 환자 중 120명을 무작위 추출하여 비교하였다. 결 과 : 약년자군에서 여성의 비율이 상대적으로 높고, 조직학적 분류상 선암이 가장 흔한 형태였으며, 비소세포암의 경우 진행된 병기(IIIB와 IV)로 진단된 경우가 많았고, 대조군에 비하여 유의하게 낮은 생존율을 보였다. 생존율에 영향을 미치는 인자로는 진행된 병기만이 유의한 독립변수로 나타났다. 결 론 : 약년자 폐암 환자들은 장노년층의 환자에 비해 진단시 진행된 병기가 많고 낮은 생존율을 보여 더 공격적이라는 것을 알 수 있었다.

Background : It has been reported that younger patients with lung cancer have characteristic features that differ from those in older patients. The prognosis for young patients with this disease is controversial. This study aimed to determine the clinicopathological characteristics, the survival rate, and the risk factors associated with the overall survival rate in younger patients with lung cancer. Methods : The records of 120 young(age${\leq}40$) patients with histologically confirmed lung cancer in the Korea Caneer Center Hospital(KCCH) between Jan. 1992 and Dec. 1998 were retrospectively reviewed. Of 5,082 lung cancer patients registered at the KCCH from 1992 to 1998, 120 older(age>40) patients were randomly selected as the controls. Results : More female patients(45.0% vs. 20.0%, p<0.001) and more adenocarcinoma cases(64.2% vs.38.3%, p<0.001) were found in the younger group, when compared to the older patients. In NSCLC, advanced disease(stage IIIB and IV) was more common in the younger patients(90.2%) than in the older patients(62.7%) (p<0.001). The Median survival was 8.6 months in the younger patients and 12.2 months in the older(p=0.003). In a multivariate analysis, only the advanced-stage was an independent negative prognostic factor. Conclusions : Lung cancer in the younger age group presents with a more advanced stage resulting in a poor survival rate, which suggests that lung cancer in this population is more aggressive than in older patients.

키워드