Table 2.

Multiple linear regression of the two-week disability days

Variables	Coefficient	P value	95% Confidence interval
Asthma	0.487	0.000	0.286	0.688
Allergy	0.446	0.000	0.309	0.583
Smoke	0.176	0.002	0.065	0.287
Injury	0.791	0.000	0.663	0.919
Hospitalization	1.184	0.000	0.989	1.379
Poor health	3.360	0.000	2.992	3.729
Other, chronic	0.380	0.000	0.244	0.517
Male	−0.254	0.000	−0.365	−0.143
Age group 1	0.566	0.001	0.235	0.897
Age group 2	0.378	0.006	0.110	0.645
Age group 3	0.233	0.071	−0.020	0.485
Age group 4	0.362	0.005	0.110	0.613
Age group 5	0.326	0.012	0.072	0.579
Age group 6	0.378	0.003	0.126	0.630
Age group 7	0.483	0.000	0.223	0.743
Age group 8	0.533	0.000	0.278	0.787
Age group 9	0.439	0.001	0.180	0.698
Married	−0.170	0.005	−0.289	−0.050
Job	−0.305	0.000	−0.447	−0.163
Poor	0.428	0.001	0.176	0.681
Constant	0.197	0.138	−0.064	0.457

Notes: N = 8518; R-squared = 0.115; P = 0.000.