Exhibit 99.27 MBNA MASTER CREDIT CARD TRUST II SERIES 1997-I KEY PERFORMANCE FACTORS January 31, 1998 Expected B Maturity 8/16/04 Blended Coupon 6.4780% Excess Protection Level 3 Month Average 5.03% January, 1998 4.88% December, 1997 5.25% November, 1997 4.97% Cash Yield17.84% Investor Charge Offs 4.71% Base Rate 8.26% Over 35 Day Delinquency 4.85% Seller's Interest16.09% Total Payment Rate13.52% Total Principal Balance$34,907,536,752.65 Investor Participation Amount$750,000,000.00 Seller Participation Amount$5,616,202,234.16