. Author manuscript; available in PMC: 2011 Oct 8.

Published in final edited form as: J Manipulative Physiol Ther. 2010 Oct 8;33(8):562–575. doi: 10.1016/j.jmpt.2010.08.017

Appendix Table 3.

Time lapsed between an individual’s first Back Pain visit event and their last Back Pain visit event during the 2-year MEPS longitudinal panel timeframe, based on all Back Pain office-based visits, outpatient visits, or ER visits (but NOT including Rx events). Data are pooled across all MEPS Panels 10-through-5 (N = 7,985^a).

N		1-day	1-mo	2-mo	3mo	4mo	5mo	6mo	7mo	8mo	9mo	10m	11m	12m	>12 months
7,985	(n)	2399	1113	569	401	357	278	213	181	181	144	139	140	194	1678
	(%)	30%	14%	7%	5%	4.5%	3.5%	2.7%	2.3%	2.3%	1.8%	1.7%	1.8%	2.4%	21%

Note: As example to read the table above: For n=2,399 individuals (30%) in MEPS, all of their Back Pain visit events during the 2-years data collection window clustered onto a single date; For n=1,113 individuals (14%), all of their Back Pain events from their first event to their final event cluster into a period ranging from 2-days to 30-days (1-month); etc.

n=7 MEPS respondents are missing crucial “Event Date” fields (month, year), therefore are not represented in this table.