Table 3

Comparison between HLSs and the Gen-Pop


HLSs (N = 476)
Gen-Pop (N = 56999)
p-value

Age at questionnaire (years)(mean ± SD)
46 (11.6)
47 (14.3)
.19
Gender N (%)


< .0001
Male
267 (56)
27082 (47)

Female
209 (44)
29917 (53)

Smoker N (%)
115 (25)
16916 (31)
.005
Education


< .0001
'< 10 years'
89 (19)
18453 (34)

'> 11 years'
204 (44)
24611 (44)

'University < 4 years'
88 (19)
7144 (13)

'University ≥ 4 years'
87 (19)
4595 (8)

Physical activity (N (%))


< .0001
'Inactive'
77 (16)
14510 (26)

'Minimally active'
167 (35)
27973 (49)

'Highly active'
231 (49)
14516 (25)

Problems to get to sleep (N (%))


< .0001
'Never/sometimes'
341 (72)
43394 (92)

'Often/almost every night'
130 (28)
3903 (8)

Early wakening (N(%))


< .0001
'Never/sometimes'
342 (73)
43139 (91)

'Often/almost every night'
129 (27)
4254 (9)


Oldervoll et al. BMC Cancer 2007 7:210   doi:10.1186/1471-2407-7-210