Table 1

 Demographic characteristics of patients with rheumatoid arthritis admitted to hospital in Sweden between 1987 and 2001

Study period1987 to 2001%1987 to 1996%1997 to 2001%
RA, rheumatoid arthritis; SP, surgical procedure; TJA, total joint arthroplasty.
Number of admissions
Total number of Swedish RA patient hospital admissions159 888118 19241 696
Without surgery109 4106881 1626928 24868
With at least one SP50 4783237 0303113 44832
With at least one SP in the lower limbs (RA related)18 4871211 892106 59516
With at least one foot SP (RA related)3 97331 52312 4506
With at least one knee SP (RA related)7 24855 01442 2345
With at least one hip SP (RA related)7 35355 40251 9515
With at least one TJA in the lower limbs13 25089 68283 5689
With at least one foot TJA1800.11190.1610.1
With at least one knee TJA6 38344 62241 7614
With at least one hip TJA6 71944 96841 7514
Number of RA patients
Total number49 80238 90819 790
Men15 0833011 399295 61028
Women34 7197027 5097114 18072
Without surgery26 7845420 5825311 01956
With at least one SP23 0184618 326478 77144
With at least one SP in the lower limbs (RA related)12 166248 396225 12526
With at least one SP in the lower limbs (RA related), men2 921242 013241 16723
With at least one SP in the lower limbs (RA related), women9 245766 383763 95877
With at least one foot SP (RA related)3 17061 33632 02810
With at least one knee SP (RA related)5 750124 046101 93510
With at least one hip SP (RA related)5 814124 353111 7189
With at least one TJA in the lower limbs9 316197 044182 99915
With at least one foot TJA1570.31050.3570.3
With at least one knee TJA5 133103 783101 5648
With at least one hip TJA5 460114 083111 5718
Number of surgical procedures
Total number75 80353 70422 099
Men16 9932212 143234 85022
Women58 8107841 5617717 24978
Lower limbs (RA related)20 7892712 902247 88736
Lower limbs (RA related), men4 719233 001231 71822
Lower limbs (RA related), women16 070779 901776 16978
TJA in the lower limbs13 8951810 194193 70117
Foot TJA1810.21200.2610.3
Foot TJA, men372611
Foot TJA, Women1449450
Knee TJA6 90295 03791 8658
Knee TJA, men1 6191 195424
Knee TJA, women5 2833 8421 441
Hip TJA6 81295 03791 7758
Hip TJA, men1 6871 237450
Hip TJA, women5 1253 8001 325
Maximum SPs/patient56112
Maximum SPs/patient (lower limbs, RA related)1211