Table 1

Sample characteristic by sex*

MaleFemaleTotalp Value
n (%)1095 (46.9)1239 (53.1)2334
Age (years)54.0 (14.4)54.3 (13.8)54.1 (14.1)0.648
Baseline weight (kg)87.2 (15.3)73.5 (16.1)79.9 (17.2)<0.001
Follow-up weight (kg)87.9 (16.0)74.0 (16.2)80.5 (17.5)<0.001
Annual weight gain (kg)0.17 (1.35)0.12 (1.46)0.14 (1.41)0.449
Baseline BMI status
 Normal21.934.528.6<0.001
 Overweight48.934.241.1
 Obese29.231.230.3
Baseline income ($)
 <20 000196 (17.9)332 (26.9)528
 20 000–60000529 (48.4)543 (44.0)1072
 >60 000338 (31.0)308 (24.9)646
 Not stated29 (2.7)52 (4.2)81<0.001
Baseline smoking status
 Non-smoker444 (40.7)642 (52.0)1086
 Current or ex-smoker647 (59.3)593 (48.0)1240<0.001
Baseline physical activity
 Sedentary252 (25.9)345 (30.4)597
 Low exercise level323 (33.2)448 (39.5)771
 Moderate exercise level291 (29.9)285 (25.1)576
 High exercise level106 (10.9)56 (4.9)162<0.001
Depression (baseline)
 No depressive symptoms995 (91.3)1043 (85.4)2038
 Mild depression61 (5.6)122 (10.0)183
 Moderate to severe depression34 (3.1)56 (4.6)90<0.001
Depression (follow-up)
 No depressive symptoms907 (85.6)958 (79.6)1865
 Mild depression101 (9.5)151 (12.5)252
 Moderate to severe depression52 (4.9)95 (7.9)147<0.001
Any antidepressant †0.4 (1.7)0.9 (2.5)0.7 (2.2)<0.001
TCAs †0.1 (0.6)0.2 (1.3)0.1 (1.0)<0.001
SSRIs †0.2 (1.3)0.4 (1.6)0.3 (1.4)0.019
Other antidepressant †0.1 (0.8)0.3 (1.5)0.2 (1.2)<0.001
  • *Values are n (%) or mean (SD).

  • †Annual number of prescriptions.

  • BMI, body mass index; SSRI, selective serotonin reuptake inhibitor; TCA, tricyclic antidepressant.