TABLE 4.

Relationship of Productivity Loss to Depression Symptom Severity and Occupation

	WLQ Mental-Interpersonal				WLQ Physical				WLQ Time				WLQ Output				Number of Days Missed
Variable	β	SE	(95% CI)	P	β	SE	(95% CI)	P	β	SE	(95% CI)	P	β	SE	(95% CI)	P	β	SE	(95% CI)	P
Occupation
Sales, service and support occupations^*	3.9	1.8	(0.3, 7.5)	.032	5.0	2.0	(1-0, 9.0)	.015	−2.2	2.1	(−6.3, 1.8)	.276	0.2	2.1	(−4.1, 4.5)	.922	0.2	0.2	((−0.2, 0.6)	.372
Production, construction, repairs and trans, occupations	3.5	3.7	(−3.8, 10.8)	.347	5.6	4.4	(−14.2, 3.0)	.198	−5.2	4.1	(−13.3, 3.0)	.214	−1.0	4.5	(−9.8, 7.9)	.832	−0.2	0.4	(−1.1, 0.6)	.608
Depression severity (0–1)	50.8	3.9	(43.2, 58.4)	<.001	12.9	4.4	(4.3, 21.6)	.004	46.4	4.4	(37.7, 55.1)	<.001	59.7	4.7	(50.5, 68.8)	<.001	2.2	0.5	(1-4, 3.2)	<.001
PCS−12 physical health (0–1)	−25.0	7.0	(−38.7, −11.3)	.001	−48.5	7.9	(−64.1, −32.9)	<.001	−28.9	8.1	(−44.8, −13.1)	<.001	−21.2	8.4	(−37.6, −4.7)	.012	−3.1	0.8	(−4.7, −1.5)	<.001
Age	−5.3	8.1	(−21.3, 10.7)	.513	1.2	9.2	(−16.9, 19.3)	.895	2.6	9.1	(−15.4, 20.6)	.777	5.4	9.8	(−13.9, 24.7)	.582	0.5	1.0	(−1.4, 2.4)	.601
Male	1.9	2.2	(−2.3, 6.2)	.375	5.8	2.4	(1.1, 10.6)	.018	−1.4	2.4	(−6.2, 3.4)	.561	3.5	2.6	(−1.5, 8.6)	.173	0.1	0.3	(−0.4, 0.6)	.822
_Cons.	26.6	7.1	(12.5, 40.6)	<.001	42.4	8.0	(26.5, 58.2)	<.001	31.0	8.2	(14.9, 47.1)	<.001	18.1	8.5	(1.3, 34.9)	.035	2.6	0.8	(0.9, 4.2)	.002
N			377				372				376				377				384
r ²			.459				.208				.369				.409				.168
P			<.0001				<.0001				<.0001				<.0001				<.0001

P−values for 3-class occupation variable in the models are as follows: