Table 3 Number of historical sick-leave days among persons with an incident Parkinson’s disease (PD) sick-leave and controls sick-listed at the same date for other diagnoses (all medians = 0)

Sick-leave days	PD (n = 537) Percentiles					Control (n = 537) Percentiles
	75	90	95	97.5	Max	75	90	95	97.5	Max	P	r
One year prior to incident sick-leave
Any diagnosis	0	85	210	275	339	0	0	43	272	361	<.001	.16
Musculoskeletal diagnosis	0	0	51	166	280	0	0	0	30	361	.009	.08
Mental and behavioral diagnosis	0	0	0	30	339	0	0	0	0	324	.085
Two years prior to incident sick-leave
Any diagnosis	26	190	456	640	704	0	62	194	383	687	<.001	.14
Musculoskeletal diagnosis	0	3	101	303	641	0	0	28	109	499	.023	.07
Mental and behavioral diagnosis	0	0	0	91	704	0	0	0	27	677	.228
Five years prior to incident sick-leave
Any diagnosis	141	617	975	1185	1668	62	421	741	1140	1737	.001	.10
Musculoskeletal diagnosis	0	80	270	874	1668	0	22	149	500	1595	.033	.07
Mental and behavioral diagnosis	0	0	90	306	1403	0	0	147	540	1615	.804

Distribution of historical sick-leave days among incident PD sick-leave cases (n = 537) and sick-leave controls (matched for sex, age, and date of sick-leave; n = 537) in the 1-, 2-, and 5-year-period preceding the sick-leave used for matching. Sick-leave episodes ≤14 days and days 1–14 of sick-leave episodes >14 days are not shown. Wilcoxon signed-rank test was used for comparisons. The tenth revision of International Classification of Diseases and Related Health Problems (ICD-10) was used for classification of diagnoses

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