James Saccaro
Executive Vice President and Chief Financial Officer at Baxter International
Thanks, Joe, and good morning, everyone. As Joe mentioned, we're pleased with our strong second quarter performance. Second quarter 2021 global sales of $3.1 billion advanced 14% on a reported basis, 9% on a constant currency basis and 8% on an operational basis. Sales growth this quarter reflects the ongoing recovery in hospital and surgical volumes, along with the benefit from COVID vaccines. We estimate these factors contributed just over 450 basis points of sales growth in the quarter. OUS sales of Caelyx/Doxil totaled approximately $30 million in the quarter. On the bottom line, adjusted earnings increased 25% to $0.80 per share, exceeding our guidance range driven by disciplined operational execution, and a lower-than-expected tax rate. Now I'll walk through performance by our regional segments and key product categories. Starting with our three regional segments. Sales in the Americas increased 8% on both a constant currency and operational basis. Sales in Europe, Middle East and Africa grew 8% on a constant currency basis and 5% on an operational basis, and sales in our Asia Pac region advanced 10% on a constant currency basis and 9% operationally.
Moving on to performance by key product category. Note that for this quarter, constant currency growth is equal to operational sales growth for all global businesses, except for our Pharmaceuticals business, for which we will provide both constant currency and operational growth adjusted for the acquisition of rights in select territories outside the U.S. of the Caelyx and Doxil. Global sales for Renal care were $964 million, were flat on a constant currency basis. Performance in the quarter was driven by our PD business, where we observed both the sequential and year-over-year improvement in global patient volumes. This was partially offset by declining international sales of in-center HD dialyzers, reflecting the impact from the pandemic as well as competitive dynamics. We continue to monitor the impact of excess mortality among ESRD patients and delays in new patient diagnoses resulting from the pandemic. Our expectation remains that PD patient volumes will continue to ramp over the course of the year, although the pace may vary by market. In particular, we are monitoring COVID resurgences in Asia Pac and parts of the Europe. Sales in Medication Delivery of $697 million, increased 12% on a constant currency basis. Strong global growth in this business reflects the recovery in the pace of hospital admissions in many markets following the height of the pandemic last year. We estimate that in the second quarter, the rate of U.S. hospital admissions was down approximately 7% as compared to pre-COVID levels, a market improvement from the second quarter of 2020, which saw U.S. admissions down approximately 20%. Pharmaceutical sales of $546 million, advanced 5% on a constant currency basis and were flat to prior year on an operational basis. Performance in the quarter benefited from the recovery in surgical procedures and hospital admissions, demand for our international pharmacy compounding business and the contribution from OUS sales of Caelyx/Doxil. This growth was partially offset by declines in our U.S. generic injectables portfolio, which faced a headwind from prior year sales of select injectable drugs used to treat critical COVID-19 patients as well as increased competitive activity for certain molecules.
Moving to Clinical Nutrition. Total sales were $237 million, increasing 3% on a constant currency basis. Performance in the quarter was driven primarily by growth in the U.S., partially offset by lower international sales of vitamins resulting from supply constraints. Sales in Advanced Surgery were $256 million, increasing 48% on a constant currency basis. Within the quarter, we estimate surgical procedures were at or slightly above pre-COVID levels, contributing to strength in the quarter. Sales in our Acute Therapies business were $188 million, declining 4% on a constant currency basis, reflecting the challenging year-over-year comparison due to surge in product demand this time last year related to the COVID pandemic. As Joe mentioned, we anticipate that COVID-related demand for CRRT will moderate this year, but will improve over time through the launch of new products and increased awareness of this therapy. BioPharma Solutions sales in the quarter were $183 million, representing growth of 49% on a constant currency basis, reflecting incremental sales related to the manufacturing of COVID-19 vaccines.
Moving through the rest of the P-and-L. Our adjusted gross margin of 42.6% increased by 100 basis points over the prior year, reflecting operational improvements in manufacturing and a favorable product mix as the impact from COVID receives. Adjusted SG-and-A of $649 million increased 12% on a reported basis, reflecting the impact from foreign exchange, the improvement in sales and resulting increase in commissions and increased promotional spend in support of new product launches. Adjusted R-and-D spending in the quarter of $139 million increased 18% on a reported basis driven by the impact of foreign exchange and investments in our new product pipeline. Both adjusted SG-and-A and R-and-D spending reflect a somewhat more normalized level of spend, as certain expense categories were depressed last year as a result of the pandemic, particularly those related to employee bonus accruals. Adjusted operating margin in the quarter was 17.2%, an increase of 120 basis points versus the prior year. Net interest expense totaled $34 million in the quarter, and other nonoperating income contributed $2 million in the quarter. The adjusted tax rate in the quarter was 17.8%, an increase over the prior year driven by lower stock-based compensation award deductions as compared to the prior year period. The tax rate was favorable to our expectations driven by a favorable change in earnings mix.
And as previously mentioned, adjusted earnings of $0.80 per diluted share exceeded our guidance of $0.72 to $0.75 per share. Within the second quarter, we repurchased approximately $300 million or 3.7 million shares of common stock. Year-to-date, we have repurchased $600 million or 7.3 million shares of common stock, which has been partially offset by option-related dilution. On a net basis, our outstanding share count has declined by approximately five million shares through the second quarter. In addition, during the second quarter, we announced a 14% increase in the company's quarterly cash dividend rate. The strength of our financial position has fueled our ability to increase our quarterly dividend rate on an annual basis for the sixth consecutive year. We continue to follow a strategic approach to capital allocation that is balance between inorganic and organic initiatives with the objective of accelerating growth and expanding margins, driving innovation and returning value to our shareholders. With respect to cash flow in the first half of 2021, we've generated $854 million of operating cash flow and $525 million in free cash flow.
Let me conclude my comments by discussing our outlook for the third quarter and full year 2021. For full year 2021, we expect global sales growth of approximately 8% on a reported basis, 5% to 6% on a constant currency basis and 4% to 5% on an operational basis. This assumes a benefit of approximately 100 basis points to both reported and constant currency revenue growth for the acquisition of Caelyx/Doxil as well as approximately 250 basis points of positive top line impact from foreign exchange on reported growth. Our expectation remains that on a full year basis, hospital admission rates will stay below pre-COVID levels with rates improving throughout the year, and exiting down low single digits. Based on surgical procedure data in the U.S. to date, we now expect surgical procedures will continue to be a 100% of pre-COVID levels for the remainder of the year. Moving down the P-and-L. We continue to expect adjusted operating margin to expand between 40 to 60 basis points. For the year, we expect an adjusted tax rate of approximately 17.5% and a full year diluted average share count of approximately 510 million shares. Based on these factors, we now expect 2021 adjusted earnings, excluding special items of $3.49 to $3.55 per diluted share. Specific to the third quarter of 2021, we expect global sales growth of approximately 9% on a reported basis, approximately 7% on a constant currency basis and approximately 6% on an operational basis. And we expect adjusted earnings, excluding special items of $0.93 to $0.95 per diluted share.
With that, we can now open the call up for Q-and-A.