Physical activity after total knee arthroplasty: A critical review

Table 3 Patient characteristics by study

Ref.	N	Age at surgery (mean ± SD)	Body mass index (mean ± SD)	Sex distribution (M/F)	Comorbidities
Bauman et al[39]	184	66.4 ± 9.4	30.6 ± 7.9	76/108	Undisclosed
Bonnin et al[41]	347	74.8 (28-94)	27.9 ± 4.9	120/227	Undisclosed
Brandes et al[25]	53	65.8 ± 5.8	30.7 ± 4.1	19/34	Undisclosed
Chatterji et al[42]	144	70.8 ± 10.4	-	64/80	Undisclosed
de Groot et al[26]	44	62.1 ± 9.7	32.1 ± 5.3	20/24	Undisclosed
Franklin et al[27]	14	-	-	7/14	Undisclosed
Hayes et al[28]	65	61.1 ± 2.2	30.3 ± 2.8	5/7	Undisclosed
In et al[38]	169	66.7 (49-85)	26.4 ± 4.2	152/17	64 with metabolic syndrome, 40 with hypertension, 36 with diabetes, 13 with hypertension and diabetes
Jones et al[29]	90	66.5 ± 9.7	32.6 ± 7.2	36/54	Comorbidity Index of the American Academy of Orthopedic Surgeons Outcomes Data Collection Questionnaires = 0.9 ± 1.2
Kersten et al[30]	844	74.4 ± 11.9	29.4 ± 5.0	229/615	Undisclosed
Krenk et al[31]	20	70.5 (61-89)	26.4 (19-34)	7/13	Undisclosed
Lachiewicz et al[32]	188	71 (41-89)	30.9	49/139	Undisclosed
Meding et al[33]	128	63.8 ± 8.9	-	35/93	Undisclosed
Tsonga et al[34]	52	72.6 ± 5.9	29.79 ± 5.27	-	Undisclosed
Vaidya et al[35]	100	-	-	48/62	55 with diabetes, 65 with hypertension
Vissers et al[37]	44	63.5 (42.0-78.0)	30.8 (24.2-44.9)	20/24	Undisclosed
Vissers et al[36]	21	63.8 ± 9.41	29.7 ± 5.01	9/12	Undisclosed
Walker et al[40]	19	M: 69.1 ± 5, F: 69.0 ± 7.8	-	10/9	Undisclosed

¹Includes total hip arthroplasty patients.