Table 1.
Characteristics of the EPIC-Norfolk study sample at baseline, overall and by sex
| Overall | Men | Women | |
|---|---|---|---|
| n = 1259 | n = 528 | n = 731 | |
| mean (SD) | |||
| Age, years (Range: 49 to 91 years) | 67.8 (6.9) | 68.9 (6.9) | 66.9 (6.8) |
| Body mass index, kg/m2 | 26.4 (4.2) | 26.7 (3.4) | 26.2 (4.7) |
| % (n) | |||
| Education levela | |||
| O-level or lower | 34.4 (433) | 27.7 (146) | 39.3 (287) |
| A-level | 47.2 (594) | 52.4 (277) | 43.4 (317) |
| Degree | 18.4 (232) | 19.9 (105) | 17.4 (127) |
| Paid job at present | |||
| Yes | 28.4 (357) | 31.8 (168) | 25.9 (189) |
| No | 71.6 (902) | 68.2 (360) | 74.1 (542) |
| Marital status | |||
| Married/living with partner | 83.1 (1046) | 90.3 (477) | 77.8 (569) |
| Single/widowed/separated/divorced | 16.9 (213) | 9.7 (51) | 22.2 (162) |
| Self-reported depression requiring treatment | |||
| Yes | 21.7 (273) | 14.4 (76) | 26.9 (197) |
| No | 78.3 (986) | 85.6 (452) | 73.1 (534) |
| Household dog ownership | |||
| Yes | 19.4 (244) | 17.8 (94) | 20.5 (150) |
| No | 80.6 (1015) | 82.2 (434) | 79.5 (581) |
| Primary mode of transport outside of work | |||
| Car | 88.6 (1116) | 90.7 (479) | 87.1 (637) |
| Walking, public transport or cycling | 11.4 (143) | 9.3 (49) | 12.9 (94) |
| Smoking status | |||
| Current | 2.6 (33) | 1.9 (10) | 3.1 (23) |
| Former/never | 97.4 (1226) | 98.1 (518) | 96.9 (708) |
| Self-rated health | |||
| Very good/excellent/good | 89.0 (1121) | 88.8 (469) | 89.2 (652) |
| Fair/poor | 11.0 (138) | 11.2 (59) | 10.8 (79) |
| Home neighbourhood locationb | |||
| Urban | 53.1 (669) | 54.9 (290) | 51.8 (379) |
| Rural | 46.9 (590) | 45.1 (238) | 48.2 (352) |
aEducation categories are roughly analogous to high school, college, and university; Percentages (%) may not add to 100.0% due to rounding
b Based on self-reported home postcode address