Tobacco (kretek) smoking, betel quid chewing and risk of oral cancer in a selected Jakarta population.

Purpose: This study aimed to determine the association between tobacco consumption (kretek) and betel quid chewing with oral cancer risk.

Materials And Methods: A total of 81 cases of oral cancers were matched with 162 controls in this hospital-based study. Information on sociodemographic characteristics and details of risk habits (duration, frequency and type of tobacco consumption and betel quid chewing) were collected.

GSTM1, GSTT1 and CYP1A1 polymorphisms and risk of oral cancer: a case-control study in Jakarta, Indonesia.

Purpose: to investigate genetic polymorphisms in GSTM1, GSTT1 and CYP1A1 and the association with the risk of oral cancer in the Jakarta population.

Method: A total of 81 cases and 162 controls matched for age and sex were selected from 5 hospitals in Jakarta. Sociodemographic data using questionnaires were obtained and peripheral blood samples were collected with informed consent for PCR-RFLP assay.

Dietary patterns and risk of oral cancer: a factor analysis study of a population in Jakarta, Indonesia.

A matched case-control, hospital-based study of oral cancer was conducted in Jakarta population. The sample included 81 cases and 162 controls. The purpose of this study was to determine the association between dietary pattern and oral cancer in a Jakarta population using factor analysis.

Ethnicity, socioeconomic status, transfusions and risk of hepatitis B and hepatitis C infection.

This study identifies the risk factors for hepatitis B virus (HBV) and hepatitis C virus (HCV) and measures the prevalence of hepatitis B surface antigen (HBsAg) and antibody to hepatitis C (anti-HCV) in the general population of Jakarta. A population-based sample of 985 people aged 15 and above was surveyed. Risk factors were identified through questionnaires and home visits.

Intrauterine device use and risk of tubal pregnancy: an Indonesian case-control study.

Background: We assessed the risk of tubal pregnancy among women who (1) were currently using an intrauterine device (IUD) and (2) had discontinued IUD use while still sexually active and at risk of pregnancy using data from a multicentre case-control study of married women conducted in Indonesia.

Methods: Cases were 560 women diagnosed with histologically confirmed ectopic pregnancy from April 1989 to August 1990 at any one of 11 participating hospitals. Controls were 1120 non-pregnant women similar in age and place of residence to the cases.