Research Article

Factors Affecting Physical Activity of People with Knee Osteoarthritis in Southern Taiwan: A Multiple Logistic Regression Analysis

Table 1

The comparison of categorical variables between inactive and active physical activity groups in people with KOA (n = 188).

VariablesTotal n = 188Inactive PA n = 137Active PA n = 51 value

Sex0.314
 Men56(29.8)38(27.7)18(35.3)
 Women132(70.2)99(72.3)33(64.7)
Age range0.001
 50 to < 65 years56(29.8)32(23.4)24(47.1)
 65 to < 75 years82(43.6)60(43.8)22(43.1)
 ≥75 years50(26.6)45(32.8)5(9.8)
Marital status0.040
 Without spouse78(41.5)63(46.0)15(29.4)
 With spouse110(58.5)74(54.0)39(70.6)
Comorbidities0.014
 CCI <1117(62.2)78(56.9)39(76.5)
 CCI ≥171(37.8)59(43.1)12(23.5)
Types of comorbidities
 Hypertension
  No103(54.8)70(51.1)33(64.7)0.095
  Yes85(45.2)67(48.9)18(35.3)
 Cardiovascular
  No158(84.0)110(80.3)48(94.1)0.021
  Yes30(16.0)27(19.7)3(5.9)
 Diabetes
  No152(80.9)106(77.4)46(90.2)0.047
  Yes36(19.1)31(22.6)5(9.8)
Depression status0.064
 GDS-5 <2158(84.0)111(81.0)47(92.2)
 GDS-5 ≥230(16.0)26(19.0)4(7.8)
Body mass index0.669
 <24 kg/m256(29.8)42(30.7)14(27.5)
 ≥24 kg/m2132(70.2)95(69.3)37(72.5)
Self-reported arthritis history0.008
 <5 years91(48.4)57(41.6)34(66.7)
 5 to 10 years56(29.8)45(32.8)11(21.6)
 ≥10 years41(21.8)35(25.5)6(11.8)
Site of pain knee0.038
 Unilateral pain91(48.4)60(43.8)31(60.8)
 Bilateral pain97(51.6)77(56.2)20(39.2)

. χ2 -tests were used to compare proportions of categorical variables. SD, standard deviation; KOA, knee osteoarthritis; CCI, Charlson Comorbidity Index; GDS, Geriatric Depression Scale-5.