Table 3 Summary of capacity for work as measured by WPAI at 1 and 2 years

Hours missed from work per week because of MS

5.4 (12.73)

1.9 (6.10)

−1.69 (−3.57, 0.18)

0.076

1.5 (4.66)

−2.84 (−5.29, − 0.38)

0.024

(n = 144)

(n = 126)

(n = 108)

(n = 109)

(n = 87)

Hours missed from work per week for non-MS reasons

2.9 (5.61)

3.3 (7.09)

0.57 (−1.09, 2.22)

0.498

2.9 (5.80)

−0.73 (−2.35, 0.89)

0.373

(n = 147)

(n = 126)

(n = 112)

(n = 109)

(n = 92)

Hours worked per week

33.1 (16.30)

31.9 (15.10)

−1.53 (−4.68, 1.61)

0.336

33.9 (14.64)

2.38 (−1.00, 5.76)

0.166

(n = 146)

(n = 124)

(n = 108)

(n = 112)

(n = 94)

Work productivity affected by MS^a

2.6 (2.62)

2.2 (2.52)

−0.15 (−0.62, 0.31)

0.515

2.3 (2.54)

−0.21 (− 0.83, 0.41)

0.500

(n = 144)

(n = 125)

(n = 110)

(n = 111)

(n = 95)

Regular activities affected by MS^b

3.7 (2.96)

3.3 (3.05)

−0.37 (− 0.79, 0.04)

0.078

3.0 (2.98)

−0.61 (−1.08, − 0.14)

0.011

(n = 218)

(n = 187)

(n = 185)

(n = 150)

(n = 148)