1. The report examines the effects of maternal smoking on birth weight using statistical analysis. It investigates whether birth weight is affected by factors like the mother's age, education, amount of cigarettes smoked, race, and birth order of the child. 2. Younger mothers aged 18-25 have higher smoking rates during pregnancy, which can cause low birth weight in 20% of infants. Quitting smoking in the first 3-4 months reduces the risk of low birth weight. 3. The analysis found that infants of smoking mothers had lower birth weights than non-smoking mothers. Black infants also tended to have lower birth weights than white infants.

1. 財務計量經濟學 期中報告
BIRTH WEIGHT & SMOKING
0113416 柳欣廷
0113420 林語芊

2. Research Questions
1. Are the birth weights of the infants affected by
mothers' behavior of smoking?
---Does the result differ depending on mothers’ age or
education?
---Does the influence to the infant weight depend
on the amount of cigarette consumption by
mother?

3. Research Questions
2. Does the influence to the infant weight depend
on the birth order of child?
3. Does the influence to the infant weight depend
on whether mother or father are black or white?

4. How can smoking affect your
baby’s health?
1. Pregnant women aged 18 to 25 smoke at higher
rates, with more than 20% smoking in the past
month, compared to nearly 13% of women 26 or
older.
2. Smoking during pregnancy causes low birth-
weight in at least 1 in 5 infants.
3. Women who quit during the first 3 to 4 months
of pregnancy are less likely to have low birth-
weight babies than those who keep smoking.

5. how
孕婦
有抽菸 沒有抽菸

6. Statistic analysis
Group 0：沒有吸菸的孕婦
Group 1；有吸菸的孕婦
沒有吸菸的孕婦的嬰兒的出生重量 > 有吸菸孕婦的嬰兒的出生重量

7. Another varible
 motheduc mother's yrs of educ
 parity birth order of child
 cigs cigs smked per day while preg
 mwhte if mother white
 mblck if mother black
 fwhte if father white
 fblck if father black
 mage mother's age, years

8. Maternal Age and Birth Outcomes:
Data from New Jersey
年紀小的孕婦，
嬰兒的出生重量有較
大機率比一般嬰兒輕

9. Maternal Age and Birth Outcomes:
Data from New Jersey
黑人嬰兒出生體重比
白人嬰兒出生體重有較大機率比較輕

10. 資料來源
 http://www.cancer.org/cancer/cancercauses/tobacco
cancer/womenandsmoking/women-and-smoking-
health-of-others
 http://www.guttmacher.org/pubs/journals/2926897.
html