Prevention :
Drowning facts

Lack of supervision and barriers (such as pool fencing)

Children under age one most often drown in bathtubs, buckets, or toilets (Brenner et al. 2001). Among children ages 1 to 4 years, most drownings occur in residential swimming pools (Brenner et al. 2001). Most young children who drowned in pools were last seen in the home, had been out of sight less than five minutes, and were in the care of one or both parents at the time (Present 1987).

Recreation in natural water settings (such as lakes, rivers, or the ocean)

The percent of drownings in natural water settings increases with age. These locations represent the majority of drownings in those over 15 years of age (Gilchrist et al. 2004).

Seizure disorders

For persons with seizure disorders, drowning is the most common cause of unintentional injury death, with the bathtub as the site of highest drowning risk (Quan et al. 2006).

Recreational boating

Boating carries risks for injury. In 2005, the U.S. Coast Guard received reports for 4,969 boating incidents; 3,451 participants were reported injured, and 697 died in boating incidents. Among those who drowned, 87% were not wearing life jackets. Most boating fatalities from 2005 (70%) were caused by drowning; the remainder were due to trauma, hypothermia, carbon monoxide poisoning, or other causes. Open motor boats were involved in 45% of all reported incidents, and personal watercraft were involved in another 26%.

Alcohol use

Alcohol use is involved in about 25% to 50% of adolescent and adult deaths associated with water recreation (Howland et al. 1995; Howland and Hingson 1988). Alcohol influences balance, coordination, and judgment, and its effects are heightened by sun exposure and heat (Smith and Kraus 1988). Alcohol was involved in about one-third of all reported boating fatalities.

Source :
US Centers for Disease Control and Prevention