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. 2011 Dec 19;9:115. doi: 10.1186/1477-7525-9-115

Table 1.

Characteristics of type 1 and type 2 diabetes samples

Type 1 diabetes (N = 490) Type 2 diabetes (N = 1147)
Mean (SD) N (%) Mean (SD) N (%) P value*
Demographic factors
Age (years) 51.5 (16.4) 63.7 (11.4) < 0.0001
Gender
 Male 230 (46.9) 605 (52.7) 0.03
 Female 260 (53.1) 542 (47.3)
Marital status 0.11
 No partner 125 (25.5) 251 (21.9)
 Have partner 365 (74.5) 896 (78.1)
Education 0.001
 No college degree 276 (56.3) 747 (65.1)
 College degree and higher 214 (43.7) 400 (34.9)
Annual income < 0.0001
 < $20,000 50 (10.2) 157 (13.7)
 $20,000-39,999 112 (22.9) 330 (28.8)
 $40,000-59,999 105 (21.4) 293 (25.5)
 $60,000-79,999 109 (22.2) 172 (15.0)
 $80,000-99,999 43 (8.8) 89 (7.8)
 $100,000 < 71 (14.5) 106 (9.2)
Activity (personality) trait (score 1-5) 3.3 (0.6) 3.2 (0.6) 0.11
Medical factors
Diabetes duration (years) 21.6 (12.8) 11.2 (12.8) < 0.0001
Insulin use < 0.0001
 Yes 490 (100.0) 254 (22.1)
Number of comorbidities (range 0-5) 1.1 (1.2) 1.6 (1.2) < 0.0001
 0 199 (40.6) 220 (19.2)
 1 138 (28.2) 329 (28.7)
 2 85 (17.3) 377 (32.9)
 3 44 (9.0) 147 (12.8)
 4 20 (4.1) 62 (5.4)
 5 4 (0.8) 12 (1.0)
BMI (kg/m2) 26.2 (4.6) 29.1 (5.7) < 0.0001
Lifestyle factors
Smoking 0.81
 Nonsmoking 457 (93.3) 1066 (92.9)
 Currently smoking 33 (6.7) 81 (7.1)
Physical Activity (min/week) 184.4 (133.5) 179.2 (134.9) 0.48
Diet behavior (score 0-7)
 Diet-general diet 5.5 (1.5) 5.3 (1.7) 0.01
 Diet-specific diet 5.1 (1.4) 5.3 (1.4) 0.05
 Diet-spacing carbohydrates 5.6 (1.9) 5.3 (2.0) 0.002
Quality of life
Health-related quality of life (score 0-100) 54.8 (26.9) 54.7 (25.7) 0.96
Life satisfaction (score 5-35) 16.2 (4.3) 16.6 (4.3) 0.14

BMI: body mass index

P value: t-tests/Chi-square analyses comparing differences between type 1 and type 2 diabetes samples.

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