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Table 1 Descriptive characteristics of participants at baseline in 1986

From: Do adolescent sedentary behavior levels predict type 2 diabetes risk in adulthood?

  All participants (n = 3942) Participants who developed type 2 diabetes (n = 91) Participants who did not develop type 2 diabetes (n = 3851) P value for diabetes vs. non-diabetes
Sex     0.06
 Male 1738 (44.1) 49 (53.9) 1689 (43.9)  
 Female 2204 (55.9) 42 (46.1) 2162 (56.1)  
 Missing 0 0 0  
Ethnicity     0.39
 White 2953 (74.9) 66 (72.5) 2887 (75.0)  
 Other 115 (2.9) 1 (1.1) 114 (3.0)  
 Missing 874 (22.2) 24 (26.4) 850 (22.1)  
BMI category     < 0.0001
 Not overweight 1900 (48.2) 21 (23.1) 1879 (48.8)  
 Overweight 247 (6.3) 19 (20.9) 228 (5.9)  
 Obese 43 (1.1) 6 (6.6) 37 (1.0)  
Missing 1752 (44.4) 45 (49.5) 1707 (44.3)  
Parental education     0.02
 No qualifications 518 (13.1) 20 (22.0) 498 (12.9)  
 O-levels 953 (24.2) 15 (16.5) 938 (24.4)  
 A-levels 268 (6.8) 9 (9.9) 259 (6.7)  
 Degree or higher 879 (22.3) 14 (15.4) 865 (22.5)  
 Missing 1324 (33.6) 33 (36.3) 1291 (33.5)  
Smoking status     0.15
 Non-smoker 2212 (56.1) 49 (53.9) 2163 (56.2)  
 Occasional smoker 1005 (25.5) 19 (20.9) 986 (25.6)  
 Smoker 682 (17.3) 23 (25.3) 659 (17.1)  
 Missing 43 (1.1) 0 43 (1.1)  
Fruit consumption     0.04
 0–1 times/week 451 (11.4) 18 (19.8) 433 (11.2)  
 2–3 times/week 890 (22.6) 26 (28.6) 864 (22.4)  
 4–5 times/week 871 (22.1) 15 (16.5) 856 (22.2)  
 6–7 times/week 1090 (27.7) 21 (23.1) 1069 (27.8)  
 Missing 640 (16.2) 11 (1.7) 629 (16.3)  
Sugary beverage consumption     0.02
 None 676 (17.2) 9 (9.9) 667 (17.3)  
 1–2 glasses/day 1224 (31.1) 41 (45.1) 1183 (30.7)  
 3–4 glasses/ day 680 (17.3) 18 (19.8) 662 (17.2)  
  > 4 glasses/day 595 (15.1) 11 (12.1) 584 (15.2)  
 Missing 767 (19.5) 12 (13.2) 755 (19.6)  
Takeaway consumption     0.11
 None 1545 (39.2) 34 (37.4) 1511 (39.2)  
 1 time/week 1456 (36.9) 28 (30.8) 1428 (37.1)  
  > 2 times/week 747 (19.0) 26 (28.6) 721 (18.7)  
 Missing 194 (4.9) 3 (3.3) 191 (5.0)  
Physical activity at age 16     0.65
 Quartile 1 864 (21.9) 22 (24.2) 842 (21.9)  
 Quartile 2 1019 (25.9) 19 (20.9) 1000 (26.0)  
 Quartile 3 1037 (26.3) 23 (25.3) 1014 (26.3)  
 Quartile 4 1022 (25.9) 27 (29.7) 995 (25.8)