TABLE 2—

Prevalence and OR (95% CI) of Major Depressive Disorder at Phase 5 by Job Strain at Phases 1, 2, and 3: Whitehall II Study, London, UK, 1988–1999

		Major Depressive Disorder at Phase 5
Job Characteristic	No.	Prevalence (No.)	OR (95% CI)a	P
Job strain
Phase 1 (n = 3915)
Low	1348	3.04 (41)	1.00 (Ref)
Medium	1308	3.67 (48)	1.19 (0.78, 1.82)	.42
High	1259	5.24 (66)	1.72 (1.16, 2.57)	.008
Phase 2 (n = 3641)
Low	1158	3.11 (36)	1.00 (Ref)
Medium	1240	3.47 (43)	1.10 (0.70, 1.73)	.67
High	1243	5.47 (68)	1.76 (1.16, 2.67)	.007
Phase 3 (n = 3660)
Low	1243	2.82 (35)	1.00 (Ref)
Medium	1313	3.81 (50)	1.32 (0.85, 2.06)	.21
High	1104	5.53 (61)	1.96 (1.28, 3.00)	.002
Work social support
Phase 1 (n = 3928)
High	1304	3.53 (46)	1.00 (Ref)
Medium	1302	3.46 (45)	0.99 (0.65, 1.51)	.96
Low	1322	4.99 (66)	1.44 (0.98, 2.11)	.07
Phase 2 (n = 3635)
High	1154	3.29 (38)	1.00 (Ref)
Medium	1176	3.91 (46)	1.23 (0.79, 1.91)	.35
Low	1305	4.83 (63)	1.52 (1.01, 2.29)	.05
Phase 3 (n = 3629)
High	1159	3.45 (40)	1.00 (Ref)
Medium	1250	4.08 (51)	1.18 (0.78, 1.81)	.43
Low	1220	4.43 (54)	1.27 (0.83, 1.93)	.26

Note. CI = confidence interval; OR = odds ratio.

^aAdjusted for age and gender.