Cited reasons included having to foot the parents' medical costs (48.9 percent), giving money for their livelihoods (47.6 percent), taking care of them when they are ill (33.1 percent) and confrontational relationships (31.6 percent).

The survey showed that 48.2 percent of the respondents had spent more than 10 million won ($8,930) on their parents' medical costs. Another 8.3 percent said they had spent over 50 million won.

For those who had paid for their parents' medical bills, 45.2 percent said they were financially pinched, and 42.3 percent said they were limited in being able to prepare for their own elderly years. Nearly 41 percent responded they were affected in rearing their own children, and 40.8 percent said they had family disagreements about taking care of their parents.

Despite the heavy financial load, 34.8 percent said they believe paying for their parents' medical bills was their duty, with the parents pitching in only when absolutely necessary.

The same survey found 34.5 percent answered they will foot the full costs as long as they are able. Another 32.8 percent said they will resort to loans if the need arises.

An overwhelming majority (84.9 percent) said they needed to prepare for their senior years, but 58.7 percent said they were unable to because of lack of financial resources, while 52.7 percent said they had to spend money on child rearing.

Asked if they wanted their children to pay for their medical bills, 61.6 percent said no. A close 60.2 percent said they were responsible for taking care of their own needs when it comes to such bills. (Yonhap)