Thank you, Tony.
Our first quarter global RevPAR rose 4.2%. RevPAR in the U.S. & Canada, where demand has normalized, rose 1.5%. Growth in the U.S. & Canada was led by strong Group and large corporate business with our top 100 accounts seeing the most sequential improvement in 8 quarters. Leisure RevPAR was flat in the U.S. & Canada, with more customers going abroad to find warmer weather.
Our quarterly RevPAR results in the region was impacted by negative growth in March, due to the timing of Easter, given less business and Group travel that we booked before the holiday. The impact on the month's RevPAR was roughly negative 300 basis points.
Of course, we expect a similar favorable impact in April's RevPAR.
First quarter international RevPAR increased 11%. Growth was led by a remarkable 16.5% RevPAR gain in APAC, helped by strong macro trends, sustained leisure and business growth and an uptick in cross-border demand especially from Mainland China as international airlift improved.
RevPAR and CALA rose nearly 12% in the quarter, with excellent leisure demand coming from the U.S. RevPAR grew 10% in EMEA with strong growth across most of our largest markets. Greater China experienced a 6% increase in RevPAR while growth was strong in January and February, rising 10% for those 2 months. Demand weakened a bit after the Chinese New Year with slower macroeconomic growth and more outbound travel especially from high-income travelers.
First quarter total gross fee revenues were above our expectations, rising 7% year-over-year to $1.21 billion. The increase reflects higher RevPAR, rooms growth and 10% higher co-brand credit card fees. [ Global ] card acquisitions grew 18% and card spend rose 10%, driven by significant growth in our international card programs. Incentive management fees, or IMF, rose 4%, reaching $209 million in the first quarter. Significant increases in each of our international regions were offset by a decline in the U.S. & Canada, in part due to lower fees in Mali.
First quarter adjusted EBITDA grew 4% to nearly $1.14 billion.
Now let's talk about our outlook for the full year.
Our 2024 outlook still assumes continued sturdy travel demand and a continuation of current macroeconomic trends. Global RevPAR is expected to grow 4% to 5% in the second quarter and 3% to 5% for the full year. By customer segment, RevPAR growth is still anticipated to be driven by another year of strong growth in Group revenue, continued improvement in business transient revenues and slower but still growing leisure revenues.
RevPAR growth is expected to remain higher in our international markets than in the U.S. & Canada.
While our full year global RevPAR guidance is not changing compared to our prior expectations, we now expect higher year-over-year RevPAR growth in APAC, EMEA and CALA and lower RevPAR growth in the U.S. & Canada and Greater China.
As a result, we are raising our full year adjusted EBITDA and adjusted EPS expectations, primarily due to higher of [indiscernible] from our international regions. In the second quarter, RevPAR grow benefits from Easter timing. Fee growth is expected to be in the 7% to 8% range.
Our owned, leased and other revenues, net of expenses, are anticipated to be lower than the prior year, largely as a result of a few favorable items in the year ago quarter.
For the full year, gross fees could now rise 7% to 9% to $5.2 billion to $5.3 billion with non-RevPAR-related fees rising 9% to 10%, driven by strong credit card and residential branding fee growth. The sensitivity of a 1% change in full year 2024 RevPAR versus 2023 could be around $50 million to $60 million of RevPAR related fees.
Owned, leased and other revenues, net of expenses, could now total $335 million to $345 million. We now expect 2024 G&A expense could rise 1% to 3% year-over-year. Recall that there are a few discrete onetime items from 2023 that are expected to offset wage and benefit increases. Full year adjusted EBITDA is now expected to rise between 7% and 9% to roughly $5 billion to $5.1 billion.
Our 2024 effective tax rate is expected to be just above 25%.
2024 adjusted EPS is now expected to be between $9.31 and $9.65. We still anticipate net rooms growth of 5.5% to 6% for the full year.
Additionally, we remain confident in the 3-year net rooms compound annual growth rate we discussed at last year's investor meeting of 5% to 5.5% from year-end '22 to year-end 2025.
For more details on second quarter and full year metrics, please see our press release.
Our capital allocation philosophy remains the same. We're committed to our investment-grade rating, investing in growth that is accretive to shareholder value and then returning excess capital to shareholders through a combination of a modest but rising cash dividend and share repurchases.
For 2024, factoring in the $500 million of required cash in the fourth quarter for the purchase of the Sheraton Grand Chicago, given our higher adjusted EBITDA expectation, capital returns to shareholders could now be between $4.2 billion and $4.4 billion.
Full year investment spending is still expected to total $1 billion to $1.2 billion. This includes another year of higher than historical investment in technology, the vast majority of which is expected to be reimbursed over time.
As a reminder, the $500 million for the Sheraton Grand Chicago consists of $200 million of CapEx and $300 million elimination of a previously recorded guarantee liability. Investment spending is also expected to incorporate roughly $200 million for our owned lease portfolio.
It includes spending for the elegant portfolio in Barbados as well as the renovations for the fabulous W Union Square in Manhattan. We'll ultimately look to recycle these assets and sign long-term management contracts after renovations are complete.
Tony and I are now happy to take your questions. Operator?