Table 1

Characteristics of 19 837 nurses at recruitment (1993/1999) by diabetes status at follow-up until 2013

Total
N=19 837
No diabetes
N=19 000
Diabetes
N=837
Person-years308 078298 5419536
Baseline age, mean (SD)51.4 (5.4)51.4 (5.3)53.6 (5.8)
Shifts
 Day shifts, n (%)12 414 (62.4)11 905 (62.6)509 (58.3)
 Evening shifts, n (%)2022 (10.1)1918 (10.1)104 (11.9)
 Night shifts, n (%)1098 (5.5)1014 (5.3)84 (9.6)
 Rotating shifts, n (%)4339 (21.8)4163 (21.9)176 (20.1)
BMI
 Underweight (<18.5 kg/m2), n (%)401 (2.0)393 (2.1)8 (0.9)
 Normal (18.5–25 kg/m2), n (%)14 124 (71.0)13 775 (72.5)349 (39.9)
 Overweight (25–30 kg/m2), n (%)4320 (21.7)3991 (21.0)329 (37.7)
 Obese (>30 kg/m2), n (%)1028 (5.1)841 (4.4)187 (21.4)
Smoking status
 Never smoked, n (%)7185 (36.1)6891 (36.2)294 (33.7)
 Currently smoker, n (%)6854 (34.4)6501 (34.2)353 (40.4)
 Previously smoked, n (%)5834 (29.3)5608 (29.5)226 (25.9)
Smoking intensity* (g/day), mean (SD)7.7 (9.0)7.6 (8.9)9.4 (10.2)
Alcohol consumption (g/week), mean (SD)119.5 (125.8)119.7 (124.8)116.0 (144.6)
Physical activity
 Low, n (%)1057 (5.3)972 (5.1)85 (9.8)
 Medium, n (%)13 105 (65.9)12 510 (65.9)595 (68.1)
 High, n (%)5711 (28.7)5518 (29.0)193 (22.1)
Consume vegetables and fruit regularly, n (%)19 452 (97.8)18 601 (97.9)849 (97.2)
Avoid fatty meat, n (%)18 097 (91.0)17 337 (91.2)760 (87.0)
Hypertension, n (%)1970 (9.9)1734 (9.1)236 (27.1)
AMI, n (%)60 (0.3)54 (0.3)6 (0.7)
Employment status
 Employed, n (%)19 725 (99.2)18 873 (99.3)852 (97.5)
 Retired, n (%)99 (0.5)83 (0.4)16 (1.8)
 Unemployed, n (%)6 (0.03)5 (0.03)1 (0.11)
 In rehabilitation, n (%)43 (0.2)39 (0.2)4 (0.4)
Marital status
 Married, n (%)14 827 (74.6)14 218 (74.8)609 (69.7)
 Separated, n (%)359 (1.8)345 (1.8)14 (1.6)
 Divorced, n (%)2319 (11.6)2197 (11.5)122 (13.9)
 Unmarried, n (%)1553 (7.8)1471 (7.7)82 (9.3)
 Widow, n (%)815 (4.1)769 .0)46 (5.2)
  • *In ever smokers.

  • AMI, acute myocardial infarction; BMI, body mass index.