In Reply We appreciate the Letter engaging with our study¹ from Li et al. Their Letter suggests that future research should aim to encompass more measures of staffing, such as part-time and agency staffing. We agree that these dimensions of staffing, along with other dimensions, may be significantly associated with quality of care in nursing homes. Some of these associations are beginning to be assessed in the literature, including the role of agency staffing, daily variation in staffing stability, and overall staff size, which may capture some of the potential effects raised by Li et al.^2-5 With the recent public availability of employee-level staffing data, we hope that future research will do more to disentangle and isolate the effects of the many variables.