Table 4.

Comparisons of topic-in-title articles on chronic and acute postsurgical pain

Years	“Chronic pain”a AND “surgery”b IN TITLE		“Pain” NOT “chronic” AND “surgery”b IN TITLE
	Number of articles	As a percentage of “chronic pain”a onlyc	Number of articles	As a percentage of “pain” onlyc
81–90	0	0%	626	6.8%
91–00	11	0.6%	1137	6.5%
01–10	46	0.8%	2117	5.8%

Notes:

^aOR “neuropathic;”

^bOR “postoperative;”

^cwithout “surgery” or “postoperative.”