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Last updated on: March 11, 2015 11:09 AM

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HelpAge International has released its first Disaster Risk and Age Index, which evaluates 190 countries. Its estimated 66 percent of those 60 years old and above live in less developed countries. HelpAge says that figure is expected to rise to nearly 80 percent by 2050. Thats over two billion people.

HelpAge CEO Toby Porter said, Theres quite rightly enormous interest globally at the moment in disaster risk reduction. I think an understanding that the world needs to invest in helping communities prepare for disasters and be more resilient when they do happen. But something that hasnt been so well internalized or understood is how vulnerable older people are to disasters and more vulnerable than other members of the community.

He gave 2005s Hurricane Katrina as an example. The storm slammed into the southern U.S. city of New Orleans.

The population of New Orleans the day the levies broke the breakdown was that only 16 percent of the population that day was age 60 or older. And yet the statistics we have is that 75 percent of the men and women, who lost their lives that day, were age 60 or over. I mean its a most extraordinary statistic.

And 56 percent of those who died in Japans 2011 Tsunami were age 65 and older, even though they made up only 23 percent of the population.

Obviously, there are certain physical infirmities that come with older age. So, for example, a decreased ability to exit fast from an area where there may be a tsunami wave coming or to flee insecurity. There may be an instance whereby communities use disaster drills with whistles or sirens. You might have an older person in the community who may be hard of hearing. You might get someone whos housebound and not able to see the dangers coming, he said.

Protection of older populations, Porter said, will only grow in importance.

The population is getting older, which is a wonderful thing. The reason that populations are getting older is because were all living in an era where every year people can expect to live longer and healthier lives. Often people think that population aging is just a developed world phenomenon — or concentrated in countries like the U.S. and Canada and Western Europe. But actually populations are aging around the world and the fastest growing regions are Asia and Latin America.

He said the world must adapt its health care, economies and social welfare to an aging population.

If you speak to an older person regardless of which country, regardless of which culture or religion or background they come from, theyll often talk about four major concerns. What kind of health am I in? Do I feel that I have enough money? Am I safe and living free from violence, discrimination or other forms of elder abuse? And fourth and a very important one am I listened to? Do I have a say? Is my voice heard?

The top 10 countries where older people are most at risk are Somalia, Central African Republic, Afghanistan, Sudan, Yemen, South Sudan, Myanmar, the DRC, Syria and Iraq. There are 17 sub-Saharan African countries among the top 30 where older people are most at risk.

The HelpAge chief executive officer said hes sees encouraging signs for older people as the Sustainable Development Goals take shape. The U.N. meets late this year to finalize the replacements for the Millennium Development Goals.