Table 4.
Spearman’s correlation coefficient “ρ” between subscales of quality of life in Parkinson’s disease instrument, Parkinson’s disease questionnaire-39, and short form-36
| qADL | qMobility | qPsycho | qfear | qsocial | qfamily | qtreat | qfinance | qNMS | qtotal | qglobal | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| qADL | 1 | ||||||||||
| qMobility | 0.71 | 1 | |||||||||
| qPsycho | 0.46 | 0.43 | 1 | ||||||||
| qfear | 0.34 | 0.35 | 0.57 | 1 | |||||||
| qsocial | 0.50 | 0.47 | 0.49 | 0.64 | 1 | ||||||
| qfamily | 0.60 | 0.53 | 0.54 | 0.50 | 0.56 | 1 | |||||
| qtreat | 0.33 | 0.30 | 0.32 | 0.40 | 0.34 | 0.32 | 1 | ||||
| qfinance | 0.28 | 0.25 | 0.32 | 0.42 | 0.37 | 0.43 | 0.30 | 1 | |||
| qNMS | 0.66 | 0.56 | 0.49 | 0.41 | 0.47 | 0.57 | 0.28 | 0.40 | 1 | ||
| qtotal | 0.78 | 0.72 | 0.70 | 0.69 | 0.73 | 0.77 | 0.50 | 0.56 | 0.83 | 1 | |
| qglobal | −0.51 | −0.48 | −0.40 | −0.46 | −0.43 | −0.54 | −0.40 | −0.50 | −0.51 | −0.65 | 1 |
| pmob | 0.72 | 0.65 | 0.48 | 0.45 | 0.51 | 0.64 | 0.34 | 0.32 | 0.68 | 0.76 | −0.64 |
| pADL | 0.71 | 0.50 | 0.42 | 0.29 | 0.40 | 0.60 | 0.17 | 0.24 | 0.58 | 0.64 | −0.52 |
| pEmotion | 0.57 | 0.52 | 0.75 | 0.63 | 0.59 | 0.63 | 0.37 | 0.41 | 0.61 | 0.78 | −0.56 |
| pstigma | 0.29 | 0.26 | 0.43 | 0.56 | 0.65 | 0.45 | 0.28 | 0.35 | 0.24 | 0.49 | −0.37 |
| psocial | 0.28 | 0.19 | 0.38 | 0.43 | 0.41 | 0.43 | 0.17 | 0.35 | 0.29 | 0.43 | −0.27 |
| pcog | 0.51 | 0.47 | 0.41 | 0.44 | 0.49 | 0.50 | 0.30 | 0.36 | 0.65 | 0.66 | −0.48 |
| pcomm | 0.59 | 0.51 | 0.39 | 0.39 | 0.53 | 0.48 | 0.25 | 0.22 | 0.57 | 0.62 | −0.44 |
| pboddis | 0.33 | 0.26 | 0.45 | 0.41 | 0.32 | 0.42 | 0.37 | 0.31 | 0.49 | 0.54 | −0.40 |
| PF | −0.50 | −0.53 | −0.27 | −0.16 | −0.22 | −0.31 | −0.34 | −0.11 | −0.42 | −0.48 | 0.41 |
| RP | −0.38 | −0.40 | −0.35 | −0.31 | −0.20 | −0.37 | −0.25 | −0.20 | −0.46 | −0.49 | 0.30 |
| BP | −0.50 | −0.45 | −0.39 | −0.42 | −0.47 | −0.51 | −0.31 | −0.27 | −0.52 | −0.64 | 0.33 |
| GH | −0.32 | −0.25 | −0.41 | −0.38 | −0.34 | −0.33 | −0.27 | −0.23 | −0.44 | −0.47 | 0.40 |
| VT | −0.46 | −0.41 | −0.50 | −0.37 | −0.43 | −0.40 | −0.41 | −0.37 | −0.44 | −0.59 | 0.51 |
| SF | −0.57 | −0.57 | −0.51 | −0.40 | −0.53 | −0.62 | −0.38 | −0.33 | −0.49 | −0.69 | 0.41 |
| RE | −0.33 | −0.37 | −0.36 | −0.3 | −0.23 | −0.34 | −0.24 | −0.35 | −0.42 | −0.48 | 0.32 |
| MH | −0.36 | −0.36 | −0.68 | −0.55 | −0.46 | −0.43 | −0.27 | −0.33 | −0.5 | −0.63 | 0.33 |
| PCS | −0.51 | −0.49 | −0.24 | −0.24 | −0.28 | −0.40 | −0.35 | −0.13 | −0.49 | −0.54 | 0.41 |
| MCS | −0.41 | −0.42 | −0.65 | −0.52 | −0.46 | −0.51 | −0.32 | −0.44 | −0.54 | −0.67 | 0.41 |
Prefix “q” has been used for subscales of QLPD. qADL=Activities of daily living, qMobility=Mobility, qPsycho=Psychological, qfear=Fear, qsocial=Social, qfamily=Family, qtreat=Treatment, qfinance=Finance, qNMS=Nonmotor symptoms, qtotal=Summary score, qglobal=Global quality of life rating by the patient. Prefix ‘p’ has been used for subscales of 39-item PDQ-39. pmob=Mobility, pADL=ADL, pEmotion=Emotional, pstigma=Stigma, psocial=Social, pcog=Cognition, pcomm=Communication, pboddis=Bodily discomfort, SF 36=36 item short form scale, PF=Physical function, RP=Role physical, BP=Body pain, GH=General health, VT=Vitality, SF=Social function, RE=Role emotion, MH=Mental health, PCS=Physical component summary, MCS=Mental component summary, QLPD=Quality of life in Parkinson’s disease, PDQ-39=39-item Parkinson’s disease questionnaire