Playing sport injured is associated with osteoarthritis, joint pain and worse health-related quality of life: a cross-sectional study

Table 3 Linear regression analysis investigating the relationship between playing sport while injured and health related quality of life, in elite and recreational cricketer subgroups

	Physical Component Score		Mental Component Score
	Unadjusted Effect (95% CI)	Adjusted^a Effect (95% CI)	Unadjusted Effect (95% CI)	Adjusted^a Effect (95% CI)
Elite (n = 849)
Played sport while injured (n = 690, 81%)	− 2.06 (− 3.52–0.59), P = 0.006	−1.64 (− 3.09, − 0.20), P = 0.026	− 2.27 (− 3.68, − 0.87), P = 0.002	− 2.07 (− 3.52, − 0.63), P = 0.005
Never played sport while injured (n = 159, 19%)	Reference Group
Recreational (n = 1329)
Played sport while injured (n = 993, 75%)	− 1.42 (− 2.46, − 0.38), P = 0.008	− 1.89 (− 2.94, − 0.83), P < 0.001	−0.93 (− 1.98, 0.12), P = 0.084	−0.70 (− 1.79, 0.39), P = 0.208
Never played sport while injured (n = 336, 25%)	Reference Group

^a Estimates were adjusted for age, gender (male = 0, female = 1), cricket seasons played, playing status (current = 0, former = 1), history of joint injury (no joints injured = 0, sustained a joint injury = 1), and history of orthopaedic surgery (never had an orthopaedic surgery = 0, underwent orthopaedic surgery = 1)
^b SF-8: Short-Form 8 Health Survey; Physical Component Scores (PCS) were calculated using norm based scoring (population norm 50 SD 10, high scorer = better health-related quality of life); Mental Component Scores (MCS) were calculated using norm based scoring (population norm 50 SD 10, high scorer = better health-related quality of life)

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