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Table 1 Characteristics of type 1 and type 2 diabetes samples

From: Determinants of quality of life in adults with type 1 and type 2 diabetes

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