Lower limb intracast pressures generated by different types of immobilisation casts

Table 1 Summary of intracast pressures and pain scores recorded after application of the different cast types

		Mean	Std. deviation	Std. error	95%CI for mean		Minimum	Maximum	P-value
					Lower bound	Upper bound
Intracast pressure (mmHg)	Backslab	47.05	31.8	4.79	37.38	56.71	2	120	< 0.001
	Full POP	72.28	60.3	9.66	52.73	91.83	2	230
	Split POP	17.15	7.53	1.29	14.52	19.77	1	28
	Fibreglass	82.73	67.01	12.23	57.71	107.76	2	240
	Split Fibreglass	26.58	21.33	3.25	20.02	33.15	0	70
	Total	47.88	48.48	3.52	40.94	54.82	0	240
Pain	Backslab	3.99	2.9	0.44	3.11	4.87	0	10	< 0.001
(VAS	Full POP	4.77	3.73	0.6	3.56	5.98	0	10
score)	Split POP	1.04	1.06	0.18	0.67	1.41	0	3
	Fibreglass	5.8	3.37	0.62	4.54	7.06	0	10
	Split Fibreglass	1.9	2.09	0.32	1.25	2.54	0	7
	Total	3.43	3.24	0.24	2.97	3.9	0	10

POP: Plaster of Paris; VAS: Visual Analog Scores.