A cross sectional study on the motivators for Asian women to attend opportunistic mammography screening in a private hospital in Malaysia: the MyMammo study

Table 2 Summary for two-step cluster analysis

Model	Exclusion^a	Number of Clusters	Schwarz's Bayesian Criterion (BIC)	Cluster quality
Full model	None	4	18827.990	Poor
Model 1	Exclude smoking status	2	18959.512	Fair
Model 2	Exclude age at menarche	5	16456.869	Poor
Model 3	Exclude oral contraceptive status	2	16212.759	Fair
Model 4	Exclude Gynaecology surgery status	2	15089.163	Fair
Model 5	Exclude ethnicity	3	12973.058	Fair
Model 6	Exclude parity status	2	13416.631	Fair
Model 7	Exclude menopausal status include parity	3	13372.869	Fair
Model 8	Exclude menopausal status	3	13453.375	Fair

^aFull model consists of all variables in Table 1, mammography history, age at first screening and motivators for attending screening. Model 1 – Model 8: sequentially excluding variables with least association with mammography history

ISSN: 1471-2458