Exhibit 99.27 MBNA MASTER CREDIT CARD TRUST II SERIES 1998-E KEY PERFORMANCE FACTORS February 28, 2001 Expected B Maturity 4/15/2008 Blended Coupon 5.8936% Excess Protection Level 3 Month Average 4.94% February, 2001 7.35% January, 2001 7.13% December, 2000 0.35% Cash Yield19.50% Investor Charge Offs 4.62% Base Rate 7.53% Over 30 Day Delinquency 5.13% Seller's Interest 8.26% Total Payment Rate13.44% Total Principal Balance$57,174,868,500.05 Investor Participation Amount$882,400,000.00 Seller Participation Amount$4,724,177,938.56