Table 2

Salivary cortisol levels in high- versus low-lonely individuals

Hour

Wake (0 h)

30 min (0.5 h)

Bedtime (16 h)

Diurnal slope

Low lonely

5.44 ± 0.42*

6.82 ± 0.42

1.36 ± 0.42

-0.301 ± 0.042^†

High lonely

4.42 ± 0.53

5.87 ± 0.53

1.90 ± 0.53

-0.202 ± 0.033

*Mean ± standard error μg/dl saliva; ^†μg/dl/h.

Cole et al. Genome Biology 2007 8:R189   doi:10.1186/gb-2007-8-9-r189