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Adjusted palivizumab effectiveness derived using the IPSW. CLD indicates chronic lung disease of prematurity; hsCHD, hemodynamically significant congenital heart disease; ICU, intensive care unit; IPSW, inverse propensity score weight; LCL%, lower confidence limit percent; mo, month; MV, mechanical ventilation; PE, Palivizumab effectiveness; RSV, respiratory syncytial virus; UCL%, upper confidence limit percent; wGA, weeks of gestational age.
