> Because physical exams are performed in mobile vans in NHANES, data could not be collected in northern latitudes during the winter

Why not?

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infinite_spin 4 hours ago | parent | next [-]

Probably due to road conditions during the winter season. Imagine asking someone who isn't used to driving on icy roads to drive a large van full of equipment up through the Rockies

	▲	floxy 2 hours ago \| parent [-]
		They plow the mountain passes in the winter time in at least Montana and Idaho. I'd be very surprised if they don't in Colorado or Utah.

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4 hours ago | parent | prev [-]

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