Table 4.

Examining factors linked to medically unexplained physical symptoms (MUPS) among NLAAS respondents (N = 4,864)

	Model 1		Model 2		Model 3
	IRR	95% CI	IRR	95% CI	IRR	95% CI
Race/ethnicity
White (reference)	--	--	--	--	--	--
Latino	0.44***	[0.33, 0.59]	0.48***	[0.36, 0.63]	0.46***	[0.34, 0.62]
Asian	0.57***	[0.44, 0.73]	0.58***	[0.44, 0.75]	0.57***	[0.44, 0.74]
Gender
Male (reference)	--	--	--	--	--	--
Female	1.50**	[1.16, 1.93]	1.48**	[1.14, 1.91]	1.43**	[1.10, 1.86]
Age group
18–34 (reference)	--	--	--	--	--	--
35–49	0.79	[0.60, 1.03]	0.79	[0.60, 1.04]	0.80	[0.60, 1.05]
50–64	0.81	[0.61, 1.08]	0.84	[0.61, 1.15]	0.92	[0.69, 1.22]
65 and older	1.12	[0.78, 1.61]	1.19	[0.82, 1.73]	1.30	[0.87, 1.95]
GPS count	1.77***	[1.67, 1.88]	1.77***	[1.67, 1.87]	1.74***	[1.64, 1.84]
Educational attainment
Less than 6 years	--	--	0.86	[0.50, 1.48]	0.88	[0.51, 1.52]
6–11 years	--	--	0.84	[0.53, 1.36]	1.05	[0.54, 1.39]
12 years	--	--	1.02	[0.68, 1.53]	1.24	[0.71, 1.56]
13–15 years	--	--	1.07	[0.67, 1.72]	1.00	[0.69, 1.75]
16 or more years (reference)	--	--	--	--	--	--
Number of chronic conditions	--	--	--	--	0.98	[0.88, 1.08]
Any mood disorder	--	--	--	--	1.48*	[1.02, 2.16]
Any anxiety disorder	--	--	--	--	1.28	[0.97, 1.71]
Any substance disorder	--	--	--	--	0.82	[0.43, 1.57]

^*p < 0.05

^**p < 0.01

^***p < 0.001

Note: Model 1 simultaneously examined race/ethnicity, gender, and age group; Model 2 examined race/ethnicity, gender, age group, and educational attainment; Model 3 examined race/ethnicity, gender, age group, educational attainment, number of chronic physical condition, any past-year mood disorder, any past-year anxiety disorder, and any past-year substance use disorder.