Table 3.

Relation between unhealthy days and pain

Pain status	Physically unhealthy days			Mentally unhealthy days			Total unhealthy days			Activity limitation
	PE	95%CI	P	PE	95%CI	P	PE	95%CI	P	PE	95%CI	P
Presence of pain
Yes	2.85	2.07‐3.63	<.0001	2.25	1.52‐2.99	<.0001	4.41	3.39‐5.42	<.0001	1.9	1.3‐2.50	<.0001
Pain intensity (Most disturbing pain)
Mild	0.99	0.10‐1.89	.030	0.40	−0.46‐1.26	.361	1.28	0.12‐2.44	.031	0.43	−0.27‐1.14	.225
Moderate	2.87	1.91‐3.82	<.0001	2.57	1.66‐3.49	<.0001	4.83	3.60‐6.07	<.0001	1.58	0.84‐2.33	<.0001
Severe	5.91	4.85‐6.97	<.0001	3.75	2.73‐4.77	<.0001	8.21	6.84‐9.58	<.0001	3.62	2.79‐4.45	<.0001
Average pain intensity
Mild	1.54	0.72‐2.37	.0002	0.91	0.13‐1.69	.023	2.29	1.22‐3.35	<.0001	0.83	0.19‐1.47	.011
Moderate	3.96	2.98‐4.94	<.0001	3.52	2.59‐4.45	<.0001	6.61	5.34‐7.88	<.0001	2.19	1.43‐2.95	<.0001
Severe	8.03	6.50‐9.57	<.0001	6.01	4.54‐7.47	<.0001	11.11	9.16‐13.07	<.0001	6.16	4.96‐7.35	<.0001
Headache
1‐3 times a month	0.94	0.15‐1.74	.021	0.96	0.22‐1.69	.011	1.87	0.86‐2.89	.000	0.42	−0.18‐1.02	.171
4‐10 times a month	2.67	1.51‐3.83	<.0001	3.17	2.11‐4.24	<.0001	5.42	3.94‐6.89	<.0001	2.23	1.36‐3.11	<.0001
11‐20 times a month	5.47	3.83‐7.11	<.0001	7.14	5.64‐8.65	<.0001	10.58	8.49‐12.67	<.0001	5.84	4.61‐7.06	<.0001
More than 20 times a month	6.32	4.22‐8.42	<.0001	6.95	5.00‐8.90	<.0001	9.88	7.21‐12.55	<.0001	5.80	4.20‐7.40	<.0001
Neck/Shoulder
1‐3 times a month	−0.11	−1.11‐0.90	.838	0.37	−0.56‐1.31	.433	0.37	−0.93‐1.67	.574	0.18	−0.60‐0.95	.656
4‐10 times a month	0.86	−0.28‐2.01	.138	1.24	0.17‐2.31	.023	1.82	0.34‐3.30	.016	0.54	−0.34‐1.42	.232
11‐20 times a month	1.95	0.63‐3.27	.004	2.63	1.39‐3.86	<.0001	3.95	2.24‐5.65	<.0001	1.22	0.20‐2.24	.019
More than 20 times a month	3.03	2.05‐4.00	<.0001	3.32	2.40‐4.23	<.0001	5.38	4.12‐6.64	<.0001	2.46	1.71‐3.22	<.0001
Backache
1‐3 times a month	0.72	−0.20‐1.64	.1244	0.35	−0.51‐1.21	.423	1.14	−0.05‐2.32	.060	0.35	−0.36‐1.06	.339
4‐10 times a month	1.83	0.73‐2.93	.0011	2.23	1.21‐3.26	<.0001	3.49	2.08‐4.91	<.0001	1.14	0.28‐1.99	.009
11‐20 times a month	1.89	0.49‐3.30	.0083	1.62	0.32‐2.92	.015	3.77	1.96‐5.57	<.0001	0.88	−0.20‐1.96	.112
More than 20 times a month	3.46	2.37‐4.54	<.0001	4.05	3.04‐5.06	<.0001	6.54	5.14‐7.93	<.0001	2.27	1.43‐3.11	<.0001
Joint pain
1‐3 times a month	0.72	−0.28‐1.73	.157	0.64	−0.31‐1.60	.187	1.38	0.07‐2.69	.039	0.36	−0.41‐1.13	.362
4‐10 times a month	0.79	−0.65‐2.22	.283	2.13	0.77‐3.49	.002	2.97	1.09‐4.84	.002	0.91	−0.19‐2.02	.104
11‐20 times a month	3.93	2.21‐5.65	<.0001	3.80	2.13‐5.46	<.0001	7.45	5.21‐9.70	<.0001	1.56	0.21‐2.91	.024
More than 20 times a month	5.92	4.58‐7.27	<.0001	4.08	2.79‐5.36	<.0001	7.22	5.48‐8.97	<.0001	4.99	3.95‐6.03	<.0001

Reference category is "No pain."

Abbreviation: PE, parameter estimates; P, P value.