The 4-year mobile-examination-component sample weights were used for regression analyses taking into account the complex sampling design of NHANES and nonresponse of eligible participants.
Dental examiners trained on the NHANES protocol examined all participants at mobile examination centers.
The survey's components were administered in homes and in mobile examination centres, and also provided national reference data for biological markers, anthropometric measures, as well as demographic and socioeconomic status data.
Walking speed was derived from the measured walk component of the muscle strength module completed as part of a medical examination at an NHANES mobile examination center.
It is technically feasible to perform mobile chest DTS with a modified mobile X-ray unit, which is already widely accepted as a mobile examination tool.
To determine serostatus, eligible study subjects provided a blood sample at the mobile examination center.
Physicians at mobile examination centres performed a standardised physical examination.
