• When you use FEFI, the procedure also produces imputation-adjusted replicate weights
• new MNAR statement in the MI procedure,
• pattern-mixture approach
• Liang and Zeger (1986)
• SURVEYIMPUTE procedure imputes missing values of an item in a sample survey by replacing them with observed values from the same item.
• single and multiple hotdeck imputation and fully efficient fractional imputation (FEFI)
• Competing Risk Models
• PHREG
• In the presence of competing risks, the Kaplan-Meier method of estimating the survivor function is biased because you can no longer assume that a subject will experience the event of interest if the follow-up period is long enough
• cumulative incidence of the event of interest.
• In addition, the LIFETEST procedure performs nonparametric analysis of competing-risks data and the POWER procedure supports Cox proportional hazards regression models.
• The MCMC procedure is now multithreaded.
• FASTQUAD option in the GLIMMIX
• Classification and Regression Trees
• multilevel quadrature algorithm of Pinheiro and Chao (2006),
• The QUANTREG procedure now supports a new alternative interior point algorithm that can be more efficient for large data. Also, the PHREG procedure adds a FAST option that can speed up fitting of the Breslow and Efron partial likelihoods for the counting process style of input.
• The NLMIXED procedure enables you to specify more than one RANDOM statement in order to fit hierarchical nonlinear mixed models.
• The FREQ procedure now provides score confidence limits for the odds ratio and the relative risk.
• The FREQ procedure provides exact mid-p, likelihood ratio, and Wald modified confidence limits for odds ratios

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