Research Article

The Effect of Diabetes Medication on Cognitive Function: Evidence from the PATH Through Life Study

Table 2

Association between type of diabetes treatment and cognitive function (mean and SD).

MMSESDMTImm. Rec.STWDigit Back. Trail A Trail BPPEG (both hands)SRTCRT

No diabetes ()
 Baseline29.3 (1.2)50.3 (9.0)7.1 (2.2)53.2 (5.2)5.3 (2.2)33.9 (10.6)78.0 (30.4)10.1 (1.8).3 (.1).3 (.1)
 Follow-up29.1 (1.3)48.3 (9.1)6.7 (2.3)53.3 (5.0)5.1 (2.2)35.9 (13.2)83.3 (33.6)9.5 (1.8).3 (.1).3 (.1)
 Change−.2−2.0−.4.1−.22.05.3−.600
Diet only ()
 Baseline 29.1 (1.1)49.1 (8.1)6.8 (1.9)53.8 (4.6)5.0 (2.3)33.9 (11.0)79.3 (27.3)10.0 (1.7).3 (.1).4 (.1)
 Follow-up29.2 (1.0)45.6 (9.3)6.1 (2.2)53.6 (5.0)4.7 (1.9)39.9 (22.9)85.4 (29.5)9.2 (1.7).3 (.1).3 (.1)
 Change.1−3.5−.7−.2−.36.06.1−.80−.1
OHA only ()
 Baseline 29.1 (1.2)46.8 (9.6)6.4 (2.6)52.5 (5.6)4.8 (1.9)36.0 (12.6)85.6 (37.4)10.1 (1.9).3 (.1).3 (.1)
 Follow-up29.1 (1.1)44.4 (9.9)6.5 (2.2)52.4 (5.5)4.7 (2.1)40.1 (16.1)95.7 (37.0)9.1 (1.9).3 (.1).3 (.1)
 Change0−2.4.1−.1−.14.110.1−1.000
OHA + ins. ()
 Baseline 29.2 (1.2)47.5 (7.5)5.5 (2.0)53.4 (4.4)3.6 (2.4)42.9 (15.3)85.2 (24.8)8.8 (2.2).3 (.1).4 (.1)
 Follow-up29.0 (.9)43.4 (9.0)5.9 (2.8)53.2 (4.7)4.7 (2.1)46.2 (20.0)102.1 (39.5)7.7 (2.1).3 (.1).4 (.1)
 Change−.2−4.1.4−.21.13.316.9−1.100

Note: measures for Trail A, Trail B, SRT, and CRT represent response time. Thus, positive values for change indicate cognitive decline. All other measures (SDMT, Imm. Rec., STW, Digit Back., and PPEG (both hands)) represent number of items completed correctly (negative values for change indicate cognitive decline).