. 2023 Apr 3;5:19. doi: 10.1186/s42836-023-00172-9

Table 4.

Associations of patient age with pain/opioid use after THA

First author	Year	Study design	n	Age, yr	Follow-up	Outcome measures	Associations of older age with postoperative pain/opioid use
Prentice [9]	2019	RC	12,560	67 (59–75)^b	1 yr	Opioid usage	Less risk of postoperative opioid use
Bedard [11]	2017	RC	37,393	< 50, 2.7%	1 yr	Opioid use	Less risk of postoperative opioid use
Brembo [12]	2017	PC	223	69^a (41–91)	3 mo	WOMAC	Worse pain
Nam [3]	2015	PC	196	50^a, SD = 7.1	2.9 yr	Pain scale of 0–5	Less odds of having pain
Dowsey [22]	2014	PC	835	68^a SD = 9.9	12 mo	HHS	Better pain
Judge [2]	2013	RC	1431	70^a	1–5 yr	OHS	Worse pain in patients aged < 60 or > 70
Liu [36]	2012	CC	428	67^a SD = 11	1 d	VAS for pain	Better pain
Smith [37]	2012	PC	1318	68.5^a SD = 9.9	3 yr	HHS	Worse pain
Clement [39]	2011	PC	171	> 80	1 yr	OHS	No association
Clement [39]	2011	PC	495	65–74	1 yr	OHS	No association
Quintana [48]	2009	PC	291	> 70	2 yr	WOMAC	Worse pain
Quintana [48]	2009	PC	299	≤ 70	2 yr	WOMAC	Worse pain
Nilsdotter [54]	2002	PC	124	71^a	1 yr	WOMAC	No association
Jones [55]	2001	PC	197	55–79 (83%), ≥ 80 (17%)	6 mo	WOMAC, SF-36	No association

CC Case–control, CI Confidence interval, HHS Harris Hip Score, OHS Oxford Hip Score, OR Odds ratio, PC Prospective cohort, RC Retrospective cohort, SD Standard deviation, SF-36 36-Item Short-Form Health Survey, WOMAC Western Ontario and McMaster Universities Arthritis Index

^aData presented as mean

^bData presented as median (interquartile range)