Table 2

Respondent characteristics within each model

	Arthritis model		Back pain model		Diabetes model		Hypertension model		Heart disease model
	N*	Diagnosed (%)	N*	Diagnosed (%)	N*	Diagnosed (%)	N*	Diagnosed (%)	N*	Diagnosed (%)
Age (years)†
25–34	629	15.4	1484	15.1	91	7.6	355	12.5	74	20.2
35–44	1499	16.4	1616	20.5	291	13.9	937	12.6	192	21.3
45–54	1379	23.6	1171	18.8	438	20.7	1442	20.0	401	17.5
55–74	367	29.9	384	21.4	265	15.1	386	30.7	216	17.3
Gender†
Male	2013	19.4	2544	19.0	713.0	17.3	1766	20.0	640	19.3
Female	1861	20.8	2111	17.8	372	14.7	1354	15.9	243	16.4
Education†
Less than secondary school	479	21.4	545	21.6	149	16.2	405	21.3	148	20.6
Secondary school	1624	21.8	1963	18.4	453	19.4	1279	18.5	346	18.5
Postsecondary school	880	21.5	1087	18.4	236	15.8	706	18.3	186	21.5
Bachelor’s degree or higher	891	14.9	1060	16.9	247	11.6	730	16.1	203	14.1
Minimal occupational strength requirements†
Limited	2289	17.8	2707	17.0	643	16.5	1846	17.0	511	19.7
Light	652	22.3	831	18.8	188	17.0	543	19.0	140	18.5
Medium	748	24.0	910	22.5	200	13.5	612	21.2	182	14.8
Heavy	185	25.4	207	18.4	54	24.5	119	19.1	50	19.4
Urban rural†
Urban	3178	20.0	3785	18.0	913	16.8	2580	18.0	735	19.1
Rural	695	20.4	870	20.2	172	14.2	540	19.3	148	15.3
Work hours in previous wave‡
1–8	55	54.3	61	22.2	0	0	44	27.2	0	0
9–24	299	21.1	342	19.2	83	17.0	247	18.2	46	12.8
25–34	315	17.2	342	22.1	85	12.8	218	15.1	79	23.7
35+	3205	19.7	3910	18.0	917	16.7	2611	18.3	758	18.3
Working status at current wave§
Currently working	3766	19.4	4552	18.0	1057	15.6	3032	17.9	850	16.8
Not working due to health	108	44.5	103	37.2	28	44.1	88	30.2	33	61.2
Body mass index
Normal	1698	16.2	2170	16.2	372	3.0	1293	11.1	301	12.0
Overweight	1535	20.3	1764	20.2	462	14.2	1263	19.6	396	17.2
Obese	641	30.0	721	20.8	251	40.3	565	31.5	186	31.7
Depression
No depression	3624	20.0	4366	17.9	1052	16.2	2957	17.8	850	18.1
Depressed	250	22.3	289	27.9	33	22.1	163	26.4	33	27.7
Comorbid conditions
None	2749	15.4	3596	17.1	675	11.7	2110	15.3	523	14.2
One	1125	31.5	1059	23.0	410	24.2	1009	24.3	360	24.7

Sample size represents participants with and without disease diagnosis in each model.
*N weighted based on initial probability of selection and unit-level non-response to the initial NPHS survey. Based on the process of selecting respondents, each model may consist of a different subsample of the overall cohort and may to some extent overlap.
†Measured at time 0 when respondents were employed and not diagnosed with the health condition.
‡Work hours in wave previous to disease diagnosis.
§Working status at current wave.
NPHS, National Population Health Survey.