Exhibit 99.44 MBNA MASTER CREDIT CARD TRUST II SERIES 1999-J KEY PERFORMANCE FACTORS January 31, 2000 Expected B Maturity 09/15/2009 Blended Coupon 7.0937% Excess Protection Level 3 Month Average 5.04% January, 2000 5.09% December, 1999 4.51% November, 1999 5.51% Cash Yield17.74% Investor Charge Offs 4.73% Base Rate 7.92% Over 30 Day Delinquency 5.03% Seller's Interest 9.78% Total Payment Rate14.21% Total Principal Balance$49,077,414,912.07 Investor Participation Amount$1,000,000,000.00 Seller Participation Amount$4,800,914,393.58