Table 5

Clinical adverse experiences for which the 95% confidence intervals around the difference in incidence rate exclude 0

Adverse Experience
Sitagliptin 100 mg
n (%)
(N = 3415)
Non-Exposed
n (%)
(N = 2724)
Difference in Sitagliptin
and Non-Exposed,
% (95% CI)*

Sitagliptin > Non-exposed

Atrial fibrillation
18 (0.5)
5 (0.2)
0.3 (0.0, 0.7)

Asthenia
19 (0.6)
6 (0.2)
0.3 (0.0, 0.7)

Chest discomfort
9 (0.3)
1 (0.0)
0.2 (0.0, 0.5)

Tooth abscess
27 (0.8)
10 (0.4)
0.4 (0.0, 0.8)

Osteoarthritis
58 (1.7)
24 (0.9)
0.8 (0.2, 1.4)

Acne
7 (0.2)
0 (0)
0.2 (0.0, 0.4)

Dermatitis Contact
24 (0.7)
7 (0.3)
0.4 (0.1, 0.8)

Non-exposed > Sitagliptin

Bradycardia
0 (0)
4 (0.1)
-0.1 (-0.4, -0.0)

Goiter
1 (0.0)
6 (0.2)
-0.2 (-0.5, -0.0)

Change in bowel habit
0 (0)
4 (0.1)
-0.1 (-0.4, -0.0)

Blood glucose decreased
13 (0.4)
28 (1.0)
-0.6 (-1.1, -0.2)

Blood glucose increased
42 (1.2)
51 (1.9)
-0.6 (-1.3, -0.0)

Weight increased
12 (0.4)
20 (0.7)
-0.4 (-0.8, -0.0)

Hypoglycemia
117 (3.4)
296 (10.9)
-7.4 (-8.8, -6.1)

Sinus headache
3 (0.1)
12 (0.4)
-0.4 (-0.7, -0.1)

Prostatitis
3 (0.1)
9 (0.3)
-0.2 (-0.5, -0.0)

Balanitis
0 (0)
4 (0.1)
-0.1 (-0.4, -0.0)

Hyperkeratosis
0 (0)
8 (0.3)
-0.3 (-0.6, -0.1)

CI = confidence interval

*Positive differences indicate that the incidence rate for the sitagliptin group is higher than the incidence rate for the non-exposed group. "0.0" and "-0.0" represent rounding for values that are slightly greater and slightly less than zero, respectively.

When atrial fibrillation and atrial flutter were combined, the incidence rates were 0.5% and 0.3% for the sitagliptin and non-exposed groups, respectively (between-group difference [95% CI] = 0.3 [-0.1, 0.6]).

When tooth abscess and tooth infection were combined, the incidence rates were 1.3% and 0.9% for the sitagliptin and non-exposed groups, respectively (between-group difference [95% CI] = 0.4 [-0.1, 1.0]).

Williams-Herman et al. BMC Endocrine Disorders 2008 8:14   doi:10.1186/1472-6823-8-14