They "find themselves in the workforce well into retirement age and facing poverty rates close to 12%."

This is not a happy picture.

Examining data from the 2012 Survey of Income and Program Participation data from the United States Census, the study "examines the distinct challenges posed by the current retirement system of Social Security, pensions and savings for working-age women, retirement-aged women and retired women."

Here are seven retirement challenges women are facing.

1. The need to work longer.

The study found that labor force participation among women ages 55–64 increased from 2000's level of 53% to 59% in 2015, after hitting a peak of 61% in 2010.

In addition, "women work well into their retirement years and some may not retire at all."

A combination of investment losses from the Great Recession and a need to make up for lower career retirement savings is likely responsible — particularly since women's longer lifespans mean they will need more money than men to see them through retirement.

2. The eligibility gap in retirement plans.

Despite the fact that in 2012 women were "somewhat more likely than men" to have jobs in which employers offered retirement plans, that doesn't mean they were able to participate.

While the eligibility gap limiting women's participation has narrowed since 2006 (in 2012, 89% of men whose employers offered a plan were eligible, compared with 85% of women), and men and women now have the same overall participation rate, women do still have obstacles to overcome to be eligible: higher rates of part-time employment and shorter job tenure.

3. The percentage of women working for employers offering defined contribution plans has shrunk, and the median value of their accounts is a third lower than that of men's.

The share of women working for employers that offered only defined contribution retirement plans shrank from 49% in 2009 to 46% in 2012.

The lower median value in their accounts is partially due to the fact that women tend to contribute less to their accounts — but another contributing factor is women's dislike of risk.

Vanguard data in the report indicated that while 50% of single men own stocks in their DC accounts, just 36% of single women do.

4. Women need to make less money last longer and go further.

Even though the median household incomes of individuals aged 65 and older has increased, women have 26% less income than men, face higher medical expenses, and are more likely to need long-term care provided by a facility or caregiver.

Using the Elder Economic Security Standard Index, the study found that an average single woman 65 and older needs $2,002 per month if she rents a home and $410 a month for health costs — totaling $123,000 if she lived to age 90 and the cost remained constant.

However, Fidelity Investments estimated that both men and women would need savings of $220,000 for health care in retirement, and the Employee Benets Research Institute estimated in 2012 that a 65-year-old woman would need between $154,000 and $210,000 to cover medical costs in retirement, depending on how much she spends on prescription drugs.

5. Social Security isn't enough to get by with.

Social Security is an important source of income for older households with incomes less than $80,000, and women who are widowed, divorced and over age 70 rely on those benefits for a majority of their income.

Black women rely largely on Social Security; women of other ethnic groups also rely on wages to a large extent.

For women age 65 and older, Social Security provided 52% of household income; for men, 47%. (It accounts for 90% of income for nearly half of unmarried women, including widows, aged 65 and older.)

Defined benefit pension plans provided 21% of women's income and withdrawals from DC plans provided for two percent of income. Other sources (public assistance, personal savings, etc.) provided six percent of income for women age 65 and older.

6. Poverty is a likelihood.

Women are 80% more likely than men to be impoverished at age 65 and older, while women between the ages of 75 to 79 are three times more likely than men to be living in poverty — and nearly two thirds of older Americans in poverty are women.

Widowed women are twice as likely to be impoverished than widowed men.

White and black women are almost twice as likely to be living in poverty than their male counterparts during retirement.

7. Defined benefit plan benefits help women avoid poverty but they're not offered in all fields.

Women in the health care, education and public administration fields, where DB pension plans are more prevalent, have higher incomes in retirement and lower rates of poverty than in other industries, due to their increased participation in DB pension plans.