Table 2

Course of the functional capacity (Health Assessment Questionnaire (HAQ) scores) during 10 years of follow up

Year	HAQ (mean)	Mean difference compared with baseline	SEM^2-151	n
At entry	0.67	0		249
1	0.49	−0.25^2-150	0.04	210
2	0.55	−0.23^2-150	0.04	201
3	0.53	−0.24^2-150	0.04	168
4	0.56	−0.18^2-150	0.05	151
5	0.55	−0.19^2-150	0.05	127
6	0.56	−0.10^2-150	0.05	110
7	0.63	−0.01	0.06	98
8	0.65	−0.01	0.06	78
9	0.63	−0.07	0.07	44
10	0.65	−0.05	0.07	40