Half of U.S. kids exposed to substance abuse at home....

35.6 million children affected
It found that 35.6 million U.S. children, about half of all children in the country, live in a home where a parent or other adult uses tobacco, drinks heavily or uses illicit drugs.

More than 37 percent of U.S. children live with an adult who uses tobacco, nearly 24 percent live with a binge or heavy drinker and 12.7 percent live in a household where a parent or other adult uses illicit drugs, the report found.

These adults are three times more likely to abuse their children and four times more likely to neglect them than parents who do not abuse alcohol or drugs or use tobacco, said the report from Columbia University's National Center on Addiction and Substance Abuse.

"Children of alcohol and drug abusers are at increased risk of accidents, injuries and academic failure. Such children are more likely to suffer conduct disorders, depression or anxiety, conditions that increase the risk children will smoke, drink and use drugs," the center said in a statement.