Skip to main content

Table 1 Description of study sample (n = 22,213)

From: Sustained adherence to a Mediterranean diet and physical activity on all-cause mortality in the Melbourne Collaborative Cohort Study: application of the g-formula

Characteristics of participants
at baseline a
 Women
(n = 13,980)
Men
(n = 8233)
NmissbN%N%
Age (years; Median, IQR) 58.3(50.7, 66.3)57.3(50, 65.9)
Education:
 Primary school 4,653.3%2242.7%
 Some high school 690649.4%263632%
 Completed high school 296221.2%227827.7%
 Completed tertiary 364726.1%309537.6%
Alcohol consumptionc:
 Lifetime abstainer 422830.2%98211.9%
 Former drinker 4383.1%3544.3%
 Low (women: < 20 g/d, men: > 40 g/d) 739152.9%565468.7%
 Medium (women: 20-40 g/d, men: 40-60 g/d) 148910.7%7188.7%
 High (women: 40 + g/d, men: 60 + g/d) 4343.1%5256.4%
 SBP > 140 or DBP > 9037431430.9%322439.2%
Self-reported history of:
 Angina213362.4%1882.3%
 Asthma67238217.1%119314.5%
 Arthritisc 467533.4%167720.4%
 Family history of heart attack 600442.9%315438.3%
 Cholesterol (mmol/L; median (IQR))c575.4(4.8, 6.2)5.4(4.7, 6.0)
 Living alone249296821.5%109213.4%
 BMI (kg/m2; median (IQR))151324.7(22.4, 27.7)25.9(24, 28.1)
Smoking:19 
 Never 915565.6%406349.4%
 Former 390327.9%355643.2%
 Current 9086.5%6097.4%
Mediterranean Diet scored:2504 
 Low (0–3) 409533.1%315742.9%
 Medium (4–5) 515841.7%293639.9%
 High (6–9) 310525.1%125817.1%
Physical activitye:388 
 Low 507337.0%266132.8%
 Medium 631046.0%334841.2%
 High 232417.0%210926.0%
  1. a Study baseline is T1 (1995–1999); b Number of missing values; c Measured at T0 (1990–1994). IQR – inter-quartile range (i.e. 25th – 75th percentile). dMDS groups: low (scores 0–3), medium (4–5) and high (6–9); ePhysical activity groups: low (e.g. walking twice a week or less), medium (e.g. jogging twice a week), high (e.g. running three or more times a week)