Table 2.

Osteoporosis Screening Intervention Effectiveness According to Four Types of Analyses

Effects	Conventional Analyses				Hierarchical Bayesian Analyses
Effects	Logistic		Hierarchical		Without Collateral Data		With Collateral Data
	OR	P^*	OR	P^*	OR	P^†	OR	P^†
Regular menstruation	0.44	.027	0.44	.028	0.42	.026	0.43	.030
Total medications	0.78	.004	0.78	.004	0.76	.002	0.77	.002
Osteoporosis history	2.56	.007	2.56	.008	2.69	.005	2.68	.006
Had BMD during past 14 months	0.19	.001	0.19	.001	0.17	<.001	0.17	<.001
Average BMD rate within each clinic	1.06	.059	1.06	NA	1.07	.101	1.07	.052
Chart reminder	2.27	.163	2.27	NA	2.58	.172	2.37	.156
Chart reminder + patient education	4.99	.032	4.99	NA	5.94	.060	5.47	.029

* Nominal one-sided P based on the t-distribution.
† Bayesian analog of one-sided P: the probability that the intervention did not increase BMD testing.
BMD, bone mineral density; OR, odds ratio.