Table 3 Regression coefficients and odds ratios to rate the general health state as “good”^b

QoL: Physical score of SF12

0.2083 (< 0.0001)

(0.1374,0.2793)

1.23

(1.15,1.32)

0.2693 (< 0.0001)

(0.1748,0.3637)

0.2684 (< 0.0001)

(0.1747,0.3622)

QoL: Mental score of SF12

0.1270 (< 0.0001)

(0.0725,0.1816)

1.14

(1.08,1.20)

0.1350 (< 0.0001)

(0.0770,0.1930)

0.1341 (< 0.0001)

(0.0764,0.1918)

Patient time (hour per week)

0.1566 (0.0692)

(−0.0123,0.3255)

1.17

(0.99,1.38)

0.8844 (0.0018)

(0.3288,1.4400)

0.8375 (0.0025)

(0.2955,1.3795)

Interaction between Physical

score of SF12 and patient time

−0.0220 (0.0029)

(− 0.0365,-0.0075)

− 0.0211 (0.0040)

(− 0.0354,-0.0067)