Research Article

Sitagliptin: Is It Effective in Routine Clinical Practice?

Table 1

Baseline demographic and clinical characteristics of patients.

Patients characteristicsNumber of patients (%)Mean (SD)
(median)
range

Age (years) ()
 21–303 (0.7)65 (11.7)
(65)
23–100
 31–409 (2.0)
 41–5033 (7.2)
 51–60104 (22.7)
 61–70152 (33.3)
 >70156 (34.1)
Gender ()
 Male200 (43.8)
 Female257 (56.2)
Ethnic groups ()
 Malay153 (33.5)
 Chinese182 (39.8)
 Indian119 (26.0)
 Others3 (0.7)
Marital status ()
 Single21 (4.9)
 Married392 (90.7)
 Divorced2 (0.5)
 Widower17 (3.9)
Employment status ()
 Employed115 (35.0)
 Unemployed214 (65.0)
Baseline HbA1c (%) (mmol/mol)a ()
 <6.5 (<48)25 (6.2)8.7 (1.7)
(8.5)
4.9–17.1
 ≥6.5 (≥48)377 (93.8)
 <7.0 (<53)47 (11.7)
 ≥7.0 (≥53)355 (88.3)
Fasting blood glucose (mmol/L) (mg/dL)b ()
 <4.4 (<79.2)6 (1.6)8.8 (3.2)
(8.3)
2.9–36.9
 4.4–6.1 (79.2–109.8)50 (13.4)
 >6.1 (>109.8)317 (85.0)
Presence of comorbiditiesc ()
 Hypertension379 (82.9)
 Dyslipidemia322 (70.5)
 Cardiovascular disease143 (31.3)
 Kidney disease103 (22.5)
 Stroke23 (5.0)
Duration of diabetes (number of years) ()
 1–521 (5.2)14.9 (7.6)
(13)
0–41
 6–1091 (22.2)
 11–15118 (29.1)
 16–2081 (19.9)
 >2095 (23.4)
Body weight (kg) ()
 <5021 (7.1)70.9 (19.1)
(66.9)
36.8–195.0
 50–5966 (22.5)
 60–6984 (28.6)
 70–7943 (14.6)
 ≥8080 (27.2)
Body mass index (BMI) (kg/m2)d ()
 <18.51 (0.7)27.9 (5.4)
(27.4)
17.2–45.4
 18.5–22.925 (17.9)
 23–27.446 (32.9)
 ≥27.568 (48.5)
Waist circumference (cm)b
 Male ()95.5 (11.8)
(96.0)
65.0–132.5
  <9020 (27.0)
  ≥9054 (73.0)
 Female ()93.8 (18.0)
(91.0)
67–204
  <807 (8.2)
  ≥8078 (91.8)
Number of diabetes medications ()
 194 (20.9)2.12 (0.8)
(2)
1–4
 2224 (49.9)
 3112 (25.0)
 419 (4.2)
Type of antidiabetes medications ()
 Biguanide only41 (9.1)
 Sulphonylurea only43 (9.6)
 Insulin only16 (3.6)
 Biguanide and sulphonylurea186 (41.4)
 Biguanide and insulin20 (4.5)
 Sulphonylurea and insulin8 (1.8)
 Biguanide, sulphonylurea, and insulin24 (5.3)
 Otherse111 (24.7)
Initial dose of sitagliptin ()
 25 mg34 (7.4)
 50 mg158 (34.6)
 100 mg265 (58.0)

SD: standard deviation.
aHbA1c is categorised based on the Clinical Practice Guidelines of Malaysia of <6.5% [5] and the American Diabetes Association of <7% [6].
bFasting blood glucose and waist circumference are categorized based on the Clinical Practice Guidelines of Malaysia [5].
cSome patients may have more than one comorbidity.
dBody mass index (BMI) is categorized based on the Clinical Practice Guidelines on Management of Obesity [20].
eOthers include combinations such as meglitinides, thiazolidinediones, and alpha-glucosidase inhibitors.