The phrase "attainment has increased" is correct and usable in written English.
You can use it when discussing improvements or growth in achieving specific goals or objectives.
Example: "The recent report indicates that the attainment has increased significantly in the last quarter, reflecting the hard work of the team."
Alternatives: "achievement has risen" or "success has grown".
Individuals from the general population with lower educational attainment have increased chronic-disease prevalence, morbidity, and mortality [ 2- 4], as do individuals with specific diseases, such as cardiovascular disease, diabetes, hypertension, and chronic lung disease [ 5- 9].
Technology has increased the demand for skilled workers but educational attainment has not kept up, leading to rising payoffs for those at the top.
The percentage of children living in poverty in the United States has increased to about 22 percent, and the gap between the educational attainment of children raised in rich and poor families is large.
He said: "Over the last 10 to 15 years spending in education has increased hugely, and yet we have seen no huge increase in attainment, perhaps no increase at all.
Although local capacity for climate change mitigation policy actions has increased substantially in this period, little is known about actual goal attainment.
They stress the aspirations-attainment gap: although the college aspirations of all U.S. high school students, regardless of race, ethnicity, and family income, have increased dramatically over the past several decades, significant disparities remain in college readiness and enrollment.
We've increased the number of students that have access to programs like IB [International Baccalaureate] and AP [Advanced Placement], early college credit attainment.
It is positively correlated with age within a given cohort of parents, but within a cross section of parents at many ages, older parents are likely to have lower education because average educational attainment has been increasing over time.
We observe that women with a higher educational attainment have an increased risk of short birth intervals, which is surprising.
The broad perception that early school leaving affects in a significant way both society and individuals, who could benefit from increased educational attainment, has induced policy makers to design policies that try to address the problem.
