Exhibit 99.27 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-I KEY PERFORMANCE FACTORS March 31, 1998 Expected B Maturity 8/16/04 Blended Coupon 6.4911% Excess Protection Level 3 Month Average 5.13% March, 1998 5.83% February, 1998 4.70% January, 1998 4.88% Cash Yield18.54% Investor Charge Offs 4.85% Base Rate 7.86% Over 35 Day Delinquency 5.06% Seller's Interest11.41% Total Payment Rate13.80% Total Principal Balance$33,909,306,783.29 Investor Participation Amount$750,000,000.00 Seller Participation Amount$3,867,972,264.80