Table 6.

Change in hand dosemeter measurements over time by speciality.

	Speciality	Year term	Ratio (95% CI)a		P-value
			Analysis 1 (entire dataset)	Analysis 2 (excluding 0 mSv readings)	Analysis 1 (entire dataset)	Analysis 2 (excluding 0 mSv readings)
Left Hand	Radiology	Linear term	0.90 (0.84, 0.95)	1.18 (0.75, 1.86)	<0.01	0.05
		Squared term	1.08 (1.04, 1.13)	1.02 (0.86, 1.20)
	Cardiology	Cubic term	-	0.89 (0.79, 1.00)
		Linear term	0.84 (0.80, 0.87)	0.63 (0.55, 0.71)	<0.01	<0.001
	Surgeon/  Anaesthetist	Squared term	0.96 (0.93, 1.00)	0.88 (0.79, 0.98)
		Linear term	0.87 (0.75, 1.00)	0.51 (0.30, 0.86)	0.05	0.01
Right Hand	Radiology	Linear term	0.89 (0.84, 0.94)	1.01 (0.82, 1.24)	<0.01	0.93
		Squared term	1.08 (1.04, 1.12)	-
	Cardiology	Linear term	0.80 (0.75, 0.86)	0.73 (0.63, 0.84)	<0.01	<0.001
		Squared term	1.00 (0.97, 1.02)	-
	Surgeon/  Anaesthetist	Cubic term	1.04 (1.01, 1.07)	-
		Linear term	0.81 (0.72, 0.92)	0.51 (0.32, 0.83)	0.01	<0.007

^aRatios reported for a 5-year increase in time.