Smoking among pregnant Danish women

The dataset includes; maternal characteristics: age, pre-pregnancy Body Mass Index (BMI) kg/m2 and self-reported smoking status. obstetric history (parity and mode of conception). Health-related characteristics: chronic illness, Self-rated general health was measured by Socio-demographic characteristics: level of education, working hours (daytime or shifts), occupation (employed or unemployed), and cohabitation本数据集包含以下内容： 产妇特征：年龄、孕前体重指数（Body Mass Index, BMI）kg/m²及自我报告的吸烟状况。 产科史：孕产次数（parity）与受孕方式（mode of conception）。 健康相关特征：慢性疾病，以及自评总体健康状况（Self-rated general health，其测量方式未完整说明）。 社会人口学特征（Socio-demographic characteristics）：受教育水平、工作时长（白班或轮班制）、职业状态（在职或失业）以及同居情况。