Effects of Age and Sex on Estimated Diabetes Prevalence Using Different Diagnostic Criteria: The Tromsø OGTT Study
Table 2
Diabetes detected by HbA1c only, OGTT only and both, and by OGTT components (FPG and isolated 2hPG), by subgroups in the Tromsø OGTT Study.
Category
Subcategory
Subjects without diabetes
All subjects with diabetes (% of total)
Subjects with diabetes detected by
Subjects with diabetes detected by OGTT regardless of HbA1c
HbA1c only
OGTT only
Both HbA1c and OGTT
Raised FPG (regardless of 2hPG)
Isolated raised 2hPG
(% of diabetes)
(% of diabetes)
(% of diabetes)
(% of diabetes by OGTT)
(% of diabetes by OGTT)
All
3182
294 (8.5)
95 (32.3)
130 (44.2)
69 (23.5)
119 (59.8)
80 (40.2)
Sex†
Men
1593
163 (9.3)
53 (32.5)
72 (44.2)
38 (23.3)
76 (69.1)
34 (30.9)
Women
1589
131 (7.6)
42 (32.1)
58 (44.3)
31 (23.7)
43 (48.3)
46 (51.7)
Age (years)†
<60
1153
61 (5.0)
26 (42.6)
20 (32.8)
15 (24.6)
31 (88.6)
4 (11.4)
≥60
2029
233 (10.3)
69 (29.6)
110 (47.2)
54 (23.2)
88 (53.7)
76 (46.3)
BMI (kg/m2)*
<25
865
47 (5.2)
25 (53.2)
17 (36.2)
5 (10.6)
9 (40.9)
13 (59.1)
25–29
1491
121 (7.5)
33 (27.3)
56 (46.3)
32 (26.4)
54 (61.4)
34 (38.6)
≥30
824
124 (13.1)
37 (29.8)
56 (45.2)
31 (25.0)
55 (63.2)
32 (36.8)
Smoking status
Smoker
746
69 (8.5)
27 (39.1)
25 (36.3)
17 (24.6)
23 (54.8)
19 (45.2)
Nonsmoker
2436
225 (8.5)
68 (30.2)
105 (46.7)
52 (23.1)
96 (61.1)
61 (38.9)
PAS tertile*
Low
949
121 (11.3)
26 (21.5)
63 (52.1)
32 (26.4)
50 (52.6)
45 (47.4)
Medium
1079
101 (8.6)
39 (38.6)
38 (37.6)
24 (23.8)
39 (62.9)
23 (37.1)
High
1154
72 (5.9)
30 (41.7)
29 (40.3)
13 (18.1)
30 (71.4)
12 (28.6)
TG (mmol/L)*
<1.2
1855
115 (5.8)
52 (45.2)
46 (40.0)
17 (14.8)
37 (58.7)
26 (41.3)
1.2–2.6
1180
150 (11.3)
39 (26.0)
66 (44.0)
45 (30.0)
70 (63.1)
41 (36.9)
>2.6
146
28 (16.1)
3 (10.7)
18 (64.3)
7 (25.0)
12 (48.0)
13 (52.0)
Data are (%). Pearson Chi-square test was used for subgroup analysis. * for subjects with diabetes detected by HbA1c only as compared to OGTT only. † for subjects with raised FPG as compared to isolated raised 2hPG. Abbreviations: Haemoglobin A1c: HbA1c: oral glucose tolerance test: OGTT; fasting plasma glucose: FPG; 2-hour plasma glucose: 2hPG; physical activity score: PAS; triglycerides: TG.
