Predicting disability retirement among Abu Dhabi police using multiple measure of sickness absence

BMC Public Health

Table 6 Odds of disability retirement using total and average days of sickness absence

Variable relating to number of days of sickness absence	Total sample (n = 419)				Odds ratio for disability retirement
	*Cases (n* = *75)*		*Controls (n* = *344)*
	Mean	SD	Mean	SD	OR	95% CI	P
Total number of days of sickness absence for all spells
Penultimate calendar year	62.9	11.05	14.3	2.4	1.17	1.10–1.25	< *0.001*
Final calendar year	103.2	10	13.2	5	1.32	1.21–1.45	< *0.001*
Total exposure period	166.4	21.9	27.5	7	1.17	1.11–1.23	< *0.001*
Average length of sickness absence spells
Penultimate calendar year	17.9	3.1	6.9	1.2	1.34	1.13–1.60	< *0.01*
Final calendar year	21.9	5.4	5.9	1	2.05	1.51–2.77	< *0.001*
Total exposure period	19.9	3.5	6.9	1	1.44	1.19–1.73	< *0.001*

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