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Table 1 Interaction of education, income and classification of occupation with quality of life - Physical dimension

From: Social gradient in health-related quality of life among urban middle-age residents in Limassol, Cyprus: research article

PCS Overall Male Female
Education Level Ν
(Number)
Μ (SD)
Mean (standard Deviation)
Ν
(Number)
Μ (SD)
Mean (standard Deviation)
Ν
(Number)
Μ (SD)
Mean (standard Deviation)
None/Primary 26 41,95 (10,86) 15 44,35 (9,49) 11 38,68 (12,18)
Secondary-Lower 56 43,46 (9,37) 26 43,99 (9,09) 30 42,99 (9,74)
Secondary-Upper 191 49,78 (7,02) 104 49,68 (6,83) 87 49,89 (7,28)
Undergraduate 146 53,05 (6,11) 63 53,09 (6,21) 83 53,03 (6,07)
Postagraduate 27 54,89 (5,35) 13 52,63 (6,40) 14 56,99 (3,10)
P-value   < 0,001   < 0,001   < 0,001
Per category increase (95% C.I.)   3,81 (3,08-4,53)   3,04 (2,03–4.05)   4,58 (3,55-5,62)
P for trend   < 0.001   < 0.001   < 0.001
P for interaction       0,16
Income (€) Ν Μ (SD) Ν Μ (SD) Ν Μ (SD)
< 1000 63 42,61 (9,94) 21 42,11 (8,89) 42 42,86 (10,52)
10,001–1500 117 48,55 (7,82) 59 47,39 (7,70) 58 49,73 (7,82)
1501–2000 119 51,16 (7,33) 64 50,78 (7,79) 55 51,61 (6,79)
2001–2500 77 53,19 (5,29) 40 53,13 (5,17) 37 53,25 (5,50)
3001–5000 40 52,25 (6,22) 20 51,83 (5,64) 20 52,68 (6,87)
> 5001 33 52,80 (6,61) 21 51,92 (5,80) 12 54,33 (7,86)
P-value   < 0,001   < 0,001   
Per category increase (95% C.I.)   2,00 (1,50-2,50)   1,84 (1,16-2,52)   2,23 (1,49-2,97)
P for trend   < 0.001   < 0.001   < 0.001
P for interaction       0,92
Classification of occupation Ν Μ (SD) Ν Μ (SD) Ν Μ (SD)
Level 1 17 48,31 (7,70) 7 49,86 (3,96) 10 47,22 (9,58)
Level 2 123 51,03 (6,91) 44 49,97 (7,90) 79 51,63 (6,27)
Level 3 99 51,97 (5,90) 81 51,44 (5,78) 18 54,34 (5,99)
Level 4 71 53,84 (5,06) 35 53,91 (4,27) 36 53,77 (5,78)
P-value   0,002   0,04   0,01
Per category increase (95% C.I.)   1,51 (0,72-2,31)   1,68 (0,50-2,86)   1,58 (0,46-2,71)
P for trend   < 0,001   0,005   0,006
P for interaction       0,31