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Purpose: To determine factors predictive of patients who are at risk for being lost to follow-up after hip arthroscopy for femoroacetabular impingement syndrome (FAIS). Methods: A prospective clinical repository was queried between January 2012 and October 2017 and all patients who underwent hip arthroscopy for primary or revision FAIS with minimum 2-year follow-up were included. A total of 27 potential risk factors for loss to follow-up were available and tested for predictive value. An 80:20 random sample split of all patients was performed to create training and testing sets. Cross-validation, minimum Bayes information criteria, and adaptive machine-learning algorithms were used to develop the predictive model. The model with the best predictive performance was selected based off of the lowest postestimation deviance between the training and testing samples. The c-statistic is a measure of discrimination. It ranges from 0.5 to 1.0, with 1.0 being perfect discrimination and 0.5 indicating the model is no better than chance. A log-likelihood χ2 test was used to evaluate the goodness-of-fit of the logistic regression model. Results: A total of 2113 patients were included. Inference of minimum Bayes information criteria model indicated that male sex (odds ratio [OR] 1.82, P = .028), non-white race (African American OR 2.41, P = .013; other non-white OR 1.42, P = .042), smoking (OR 1.07, P = .021), and failure to provide a phone number (OR 1.78, P = .032) increased the risk for being lost to follow-up. Furthermore, greater preoperative International Hip Outcome Tool 12-item component questionnaire (OR 1.03, P = .004), and modified Harris Hip Score (OR 1.05, P = .014) scores increased the risk of being lost to follow-up. The c-statistic was 0.76 (95% confidence interval 0.701-0.848). The log-likelihood indicated that the regression model as a whole was statistically significant (P = .002). Conclusions: Patients who are male, non-white, smokers, fail to provide a telephone number, and have greater preoperative modified Harris Hip Score and International Hip Outcome Tool 12-item component questionnaire scores are at an increased risk for being lost to follow-up 2 years after hip arthroscopy for FAIS. Level of Evidence: Level III, case control study

The Downtown Historic District in Houston, Texas allows visitors to negotiate streets easily, but the lack of interpretation leaves the visitor with little sense of the area as a significant or distinct historical district. An active and interested core of preservation-minded citizens in Houston has worked to manipulate existing law and public attitudes to accomplish some preservation in the city.

The Chambers of Commerce represent the interest of local business and professional men and women, and are concerned with improving the business environment to ensure the growth and prosperity of their communities. The significance of the advent of women in business and their contribution to 'Boosterism' is pictured.

Efforts to explain declines in welfare caseloads in the 1990s focus on three factors (economic opportunity, welfare policy, and demographic characteristics) and produce mixed results. Although several recent studies consider state differences, few consider local differences within states. Failure to control for caseload persistence and within-state variation in program implementation may be one reason why studies produce contradictory results regarding the effect of economic conditions on caseload decline. Using data for Louisiana parishes from 1991 to 1998, we analyze local caseload decline. Our results support other researchers' finding of a 'threat effect' before 1996 welfare reform; they indicate that, all else being equal, reducing caseloads will be most difficult in nonadjacent nonmetropolitan parishes and easiest in adjacent nonmetropolitan parishes.

Objectives: Functional reorganisation of the motor or sensory cortex has been demonstrated in animals after section of mixed peripheral nerves. Here functional changes in the motor cortex specifically after peripheral [...]

Neutral gas of the local interstellar medium flows through the inner solar system while being deflected by solar gravity and depleted by ionization. The dominating feature in the energetic neutral atom Interstellar Boundary Explorer (IBEX) all-sky maps at low energies is the hydrogen, helium, and oxygen interstellar gas flow. The He and O flow peaked around 8 February 2009 in accordance with gravitational deflection, whereas H dominated after 26 March 2009, consistent with approximate balance of gravitational attraction by solar radiation pressure. The flow distributions arrive from a few degrees above the ecliptic plane and show the same temperature for He and O. An asymmetric O distribution in ecliptic latitude points to a secondary component from the outer heliosheath. 24 August 2009; accepted 2 October 2009 Published online 15 October 2009; 10.1126/science.1180971