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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: J Pain Symptom Manage. 2017 Aug 30;55(2):318–333.e4. doi: 10.1016/j.jpainsymman.2017.08.020

Table 7.

Differences in Quality of Life Scores Among the Patient Subgroups Using Latent Class Analysis or K-Modes Analysis

QOL scores All Low (0) Moderate Physical & Lower Psychological (1) Moderate Physical & Higher Psychological (2) All High (3) Statistics

Mean (SD) Mean (SD) Mean (SD) Mean (SD)

PATIENT SUBGROUPS USING LATENT CLASS ANALYSIS

MQOLS-PV - Physical well-being 7.8 (1.4) 6.5 (1.5) 6.3 (1.5) 4.7 (1.6) F(3,1292) = 179.64, p<.001
0 > 1, 2, and 3
1 and 2 > 3

MQOLS-PV - Psychological well- being 6.5 (1.6) 6.0 (1.6) 4.7 (1.6) 4.0 (1.5) F(3,1281) = 154.85, p<.001
0 > 1 > 2 > 3

MQOLS-PV - Social well-being 6.9 (1.7) 6.0 (1.8) 5.1 (1.8) 4.1 (1.8) F(3,1274) = 123.13, p<.001
0 > 1 > 2 > 3

MQOLS-PV – Spiritual well-being 5.5 (2.2) 5.5 (2.1) 5.3 (2.0) 5.6 (2.0) F(3,1286) = 0.61, p = .611

MQOLS-PV – Total QOL score 6.7 (1.2) 6.0 (1.2) 5.2 (1.2) 4.4 (1.2) F(3,1276) = 177.88, p<.001
0 > 1 > 2 > 3

SF12 – PCS score 45.6 (9.6) 39.0 (10.1) 41.1 (10.5) 35.7 (9.7) F(3,1225) = 45.76, p<.001
0 > 2 > 1 > 3

SF12 – MCS score 54.0 (8.4) 51.9 (8.5) 45.4 (9.8) 40.5 (11.1) F(3,1225) = 113.49, p<.001
0 > 1 > 2 > 3

PATIENT SUBGROUPS USING K-MODES ANALYSIS

MQOLS-PV - Physical well-being 7.6 (1.5) 6.3 (1.5) 6.5 (1.5) 5.2 (1.7) F(3,1292) = 153.99, p<.001
0 > 1, 2, and 3
1 and 2 > 3

MQOLS-PV - Psychological well- being 6.4 (1.6) 5.9 (1.6) 4.7 (1.6) 4.3 (1.6) F(3,1281) = 128.41, p<.001
0 > 1 > 2 > 3

MQOLS-PV - Social well-being 6.7 (1.8) 5.9 (1.8) 5.2 (1.8) 4.4 (1.8) F(3,1274) = 115.73, p<.001
0 > 1 > 2 > 3

MQOLS-PV – Spiritual well-being 5.5 (2.1) 5.5 (2.1) 5.3 (2.0) 5.5 (2.0) F(3,1286) = 0.71, p = .547

MQOLS-PV – Total QOL score 6.5 (1.2) 5.9 (1.3) 5.3 (1.2) 4.7 (1.3) F(3,1276) = 152.38, p<.001
0 > 1 > 2 > 3

SF12 – PCS score 44.8 (9.9) 38.1 (9.3) 41.6 (10.3) 37.0 (10.5) F(3,1225) = 43.78, p<.001
0 > 1, 2, and 3
2 > 1 and 3

SF12 – MCS score 53.7 (8.3) 51.2 (9.0) 45.3 (10.3) 42.9 (10.5) F(3,1225) = 98.06, p<.001
0 > 1 > 2 > 3

Abbreviations: MCS = Mental Component Summary, MQOLS-PV = Multidimensional Quality of Life Scale – Patient Version, PCS = Physical Component Summary, SF12 – Medical Outcomes Study Short Form 12, SD = standard deviation

a

For LCA – All Low (n=419, 31.5%), Moderate Physical and Lower Psychological (n=316, 23.8%), Moderate Physical and Higher Psychological (n=416, 31.3%) and All High (n=178, 13.4%).

b

For K-modes analysis – All Low (n=536, 40.3%), Moderate Physical and Lower Psychological (n=205, 15.4%), Moderate Physical and Higher Psychological (n=280, 21.13%) and All High (n=303, 23.24%).