Table 5. Results of non-conditional logistic regression analysis for the three years.

Variables	2007			2008			2009
	β	OR	95%CI	β	OR	95%CI	β	OR	95%CI
Dignity	0.632	1.882*	1.104–3.209	1.207	3.345**	1.873–5.972	0.344	1.411	0.902–2.206
Autonomy	0.348	1.416	0.749–2.677	0.436	1.546	0.833–2.870	0.776	2.173*	1.128–4.188
Communication	0.495*	1.641*	1.081–2.490	1.296	3.655**	2.173–6.147	0.197	1.218	0.816–1.817
Prompt attention	0.257	1.294	0.807–2.073	0.094	1.098	0.622–1.937	0.464	1.590*	1.019–2.481
Basic amenities	0.860	2.362**	1.254–4.451	1.251	3.494**	1.468–8.317	0.465	1.592	0.971–2.609

^*P<0.05,

^**P<0.01.