What Your Smartphone Knows That Your Mother Doesn’t
Can Your Smartphone Be Used to Detect Depression?
It’s always there, in your pocket or purse or on your desk, quietly collecting information. And apparently, when it comes to depression, there’s quite a lot your smartphone knows about you.
According to a small study from Northwestern Medicine, that data from your smartphone can predict with eerie 87 percent accuracy whether you’re suffering from depression or not.
The telling signs: You spend more time on your smartphone and less time leaving the house, and you visit very few places each day.
Related: Smartphone Notifications Are Killing Our Concentration
The researchers used Craigslist to find 40 test subjects between the ages of 19 and 58, and outfitted their smartphones with an app to monitor their location and usage. The individuals took a questionnaire that measured signs of depression; half of the subjects had troubling symptoms and half did not. Using GPS, the phones tracked the subjects’ movements and locations every five minutes. The subjects also were asked questions about their mood at different points during the day.
These factors were then correlated with the test subjects’ original depression test scores. And the results were uncanny. Depressed people used their phones more often and for longer periods of time —an average of 68 minutes a day. By comparison, the individuals who didn’t show signs of depression spent only 17 minutes on theirs. Researchers attributed the increased use of the phone to task avoidance, another symptom of depressed people.
Perhaps more significant than the findings of this small study — only 28 of the 40 subjects had enough data to be studied — is the potential the researchers felt that smartphones could play in future medical diagnosis.
When loaded up with the correct sensors, the smartphone can be used to detect a person’s emotional states, and monitor moods, without the user having to utter a word. It also has the ability to offer suggestions to reinforce positive behaviors when depression is detected. The results of the study were published in the Journal of Medical Internet Research yesterday, but one conclusion was becoming increasingly evident even before the report came out: Smartphones — and the sensors they now contain — just keep getting smarter.
Chart of the Day: SALT in the GOP’s Wounds
The stark and growing divide between urban/suburban and rural districts was one big story in this year’s election results, with Democrats gaining seats in the House as a result of their success in suburban areas. The GOP tax law may have helped drive that trend, Yahoo Finance’s Brian Cheung notes.
The new tax law capped the amount of state and local tax deductions Americans can claim in their federal filings at $10,000. Congressional seats for nine of the top 25 districts where residents claim those SALT deductions were held by Republicans heading into Election Day. Six of the nine flipped to the Democrats in last week’s midterms.
Chart of the Day: Big Pharma's Big Profits
Ten companies, including nine pharmaceutical giants, accounted for half of the health care industry's $50 billion in worldwide profits in the third quarter of 2018, according to an analysis by Axios’s Bob Herman. Drug companies generated 23 percent of the industry’s $636 billion in revenue — and 63 percent of the total profits. “Americans spend a lot more money on hospital and physician care than prescription drugs, but pharmaceutical companies pocket a lot more than other parts of the industry,” Herman writes.
Chart of the Day: Infrastructure Spending Over 60 Years
Federal, state and local governments spent about $441 billion on infrastructure in 2017, with the money going toward highways, mass transit and rail, aviation, water transportation, water resources and water utilities. Measured as a percentage of GDP, total spending is a bit lower than it was 50 years ago. For more details, see this new report from the Congressional Budget Office.
Number of the Day: $3.3 Billion
The GOP tax cuts have provided a significant earnings boost for the big U.S. banks so far this year. Changes in the tax code “saved the nation’s six biggest banks $3.3 billion in the third quarter alone,” according to a Bloomberg report Thursday. The data is drawn from earnings reports from Bank of America, Citigroup, Goldman Sachs, JPMorgan Chase, Morgan Stanley and Wells Fargo.
Clarifying the Drop in Obamacare Premiums
We told you Thursday about the Trump administration’s announcement that average premiums for benchmark Obamacare plans will fall 1.5 percent next year, but analyst Charles Gaba says the story is a bit more complicated. According to Gaba’s calculations, average premiums for all individual health plans will rise next year by 3.1 percent.
The difference between the two figures is produced by two very different datasets. The Trump administration included only the second-lowest-cost Silver plans in 39 states in its analysis, while Gaba examined all individual plans sold in all 50 states.