Robert Madore
Analyst · RBC Capital Markets
Thanks, Jen, and good morning, everyone. We continue to make excellent progress across our business in the first quarter, building on the momentum we saw in the latter half of last year. Despite cold weather, we saw broad-based sales gains across brands, channels and geographic regions in the quarter. In addition to consistent top line gains, we posted higher margins, achieve expense leverage, grew adjusted operating income by 23% and delivered adjusted EPS growth of the 44%.
Our comments will focus on the adjusted first quarter financials, which exclude certain items as detailed in the press release and tables on Pages 4 through 7 of the investor presentation.
Total revenue increased $61 million, rising 8% to $823 million from $762 million last year. As a reminder, last year's total net revenue included a one-time benefit of approximately $5 million received from the termination of a license agreement with a third-party operator.
Comparable sales, which are based on the shifted retail calendar, increased 9% compared to the same period last year. Additional sales information can be found on Page 9 of the investor presentation.
By brand, first quarter, American Eagle comps were up 4%, and Aerie comps increased 38%. I'm pleased to note that brick-and-mortar stores for both brands posted positive comps this quarter, continuing the trend from the fourth quarter. On a consolidated basis, stores increased in the mid-single digits with positive comps across all geographic regions in the U.S. as well as our company-owned international markets, Greater China, Canada and Mexico.
Regional sales growth 20%, reaching 29% of total revenue, up 300 basis points from 26% last year. We saw the biggest increases coming from our app in mobile channels with combined -- which combined now represents approximately half of our digital business.
Regarding our quality of sales metrics, it was a very healthy quarter. On a consolidated basis, improved traffic and conversion led to an increase in transaction comps. The transaction value and average unit retail price also increased over last year due to favorable sales mix and controlled promotional activity. Total gross profit increased 10% to $304 million from $278 million last year. Continuing the progress we made throughout last year, we saw sequential margin improvement and a higher year-over-year rate.
The gross margin rate increased 50 basis points to 37% of revenue. This reflects rent leverage in a favorable markdown rate, partially offset by increased digital delivery expense.
Selling, general and administrative expense of $210 million improved 10 basis points to 25.5% as a rate of revenue driven by strong comp sales. Store compensation, mainly due to higher sales and a wage increases as well incentive expense, drove the majority of dollar increase from $195 million last year.
Depreciation and amortization increased $1.5 million to $42 million and leveraged 20 basis points to 5.1% as a rate to revenue. Adjusted operating income rose 23% to $52 million from $42 million last year. The operating margin improved 80 basis points to 6.4% as a rate of revenue. I'm pleased to see the improvement to our operating rate, which was driven largely by strong sales and the leveraging of expenses. Unseasonable weather this quarter affected selling mix, which limited the upside to our margins. This is clearly an opportunity as we look ahead as well as continuing to seek expense efficiencies and savings across the organization.
The effective tax rate decreased to 22.1% compared to 33% last year, mostly reflecting the impact of U.S. tax legislation. Adjusted EPS of $0.23 increased $0.44 -- 44% from $0.16 last year. Adjusted earnings excluded restructuring charges of $1.6 million or approximately $0.01 per share, consisting primarily of corporate severance.
Now regarding inventory, which can be found on Page 10 of the investor presentation. We ended the quarter with inventory of cost of $404 million, up 11% from last year, which is in line with our expectations. Approximately 1/3 of the increase reflects additional inventory units held to support the company's clearance store strategies. Additionally, strong sales trends in the American Eagle jeans and long bottoms and Aerie apparel contributed to the increase. Looking forward, we expect second quarter ending inventory to be up in the high-single digits.
Capital expenditures totaled $47 million in the first quarter, and we continue to expect CapEx to be in the range of $180 million to $190 million for the year. Roughly half of the spend relates to store remodeling projects and new openings and the balance supports the digital business, omni-channel tools and general corporate maintenance.
As a result of our strong free cash flow, we ended the quarter with total cash and investments of $310 million, up $85 million or 38% compared to $225 million last year. This was after we invested $47 million in CapEx, $45 million in share repurchases and $24 million in dividends to shareholders.
Looking at our real estate portfolio, we're on track to open a total of 35 to 40 Aerie stores this year and approximately 5 AE stores, net of closures. As I've indicated previously, our store fleet is very healthy, with over 93% profitable at the operating level. We also have lease flexibility with nearly 700 stores, up for lease negotiation through fiscal 2021. Of these stores, over 58% are in D and C malls. Additional store information can be found on Pages 13 through 15 in the investor presentation.
Now looking ahead to the second quarter. We continue to be pleased with the pace of our business. We expect second quarter EPS of $0.27 to $0.29 per share based on comparable sales in the positive mid-single digits. This guidance assumes continued improvement to our gross margin and leveraging of fixed expenses. We expect the tax rate of approximately 23%.
Our second quarter guidance compares to adjusted earnings per share of $0.19 last year, which excludes potential impairment restructuring charges. We're very happy with the start of the year. As the teams discussed, we're very focused on our strategic initiatives and believe we will continue to show financial returns to our shareholders.
Thank you. And now I'd like -- we'd like to take your questions.