Table 5.
PCS | |||||
---|---|---|---|---|---|
Years of education | |||||
< 12 years | 12 years | > 12 years | Interaction test | ||
Functional limitations, meana | |||||
No | 51.2 | 52.8 | 53.3 | 0.36b | |
Yes | 41.4 | 43.4 | 44.2 | 0.25c | |
Regression coefficient† | -9.4 | -9.8 | -9.2 | ||
Chronic low back pain, meana | |||||
No | 50.1 | 52.5 | 52.9 | 0.98b | |
Yes | 43.8 | 46.2 | 47.7 | 0.07c | |
Parameter† | -6.1 | -6.4 | -5.4 | ||
Interaction test | |||||
Income level (€) | |||||
< 9,900 | 9,900-14,300 | 14,300-20,400 | > = 20,400 | Interaction test | |
Functional limitations, meana | |||||
No | 51.9 | 52.6 | 53.2 | 53.2 | 0.06d |
Yes | 42.3 | 42.1 | 44.0 | 43.4 | 0.51e |
0.69f | |||||
Regression coefficient† | -9.7 | -10.3 | -9.4 | -9.6 | |
Chronic low back pain, meana | |||||
No | 50.9 | 51.8 | 52.8 | 53.4 | 0.71d |
Yes | 44.7 | 45.8 | 47.2 | 47.0 | 0.33e |
0.76f | |||||
Regression coefficient† | -6.2 | -5.9 | -5.6 | -6.4 | |
MCS | |||||
Years of education | |||||
< 12 years | 12 years | > 12 years | Interaction test | ||
Functional limitations, meana | |||||
No | 48.5 | 48.2 | 48.9 | 0.39b | |
Yes | 45.0 | 45.3 | 45.0 | 0.57c | |
Regression coefficient† | -3.3 | -3.0 | -4.3 | ||
Chronic low back pain, meana | |||||
No | 48.2 | 48.6 | 48.8 | 0.37b | |
Yes | 44.6 | 44.4 | 46.1 | 0.26c | |
Regression coefficient† | -3.5 | -4.2 | -2.9 | ||
Income level (€) | |||||
< 9,900 | 9,900-14,300 | 14,300-20,400 | > = 20,400 | Interaction test | |
Functional limitations, meana | |||||
No | 47.8 | 48.0 | 48.8 | 49.0 | 0.07d |
Yes | 43.5 | 44.9 | 45.9 | 46.5 | 0.06e |
0.02f | |||||
Regression coefficient† | -4.3 | -2.9 | -2.9 | -2.7 | |
Chronic low back pain, meana | |||||
No | 47.7 | 47.9 | 49.0 | 49.4 | 0.02d |
Yes | 42.7 | 44.7 | 46.0 | 45.9 | 0.01e |
0.06f | |||||
Regression coefficient† | -4.9 | -3.2 | -3.0 | -3.6 |
a: mean adjusted for age
b: Interaction between health status and years of education: results for years of education = 12 years compared with years of education < 12 years; model adjusted for age
c: Interaction between health status and years of education: results for years of education > 12 years compared with years of education < 12 years; model adjusted for age
d: Interaction between health status and income level: results for income level between 9,900-14,300 € compared with income level < 9,900 €; model adjusted for age
e: Interaction between health status and income level. Results for income level between 14,300-20,400 € compared with income level < 9,900 €; model adjusted for age
f: Interaction between health status and income level. Results for income level > 20,400 € compared with income level < 9,900 €; model adjusted for age.
† Results from multiple linear regression models adjusted on age; reference group = no health condition