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Table 1 Baseline Data For The Three Responder Groups

From: Heterogeneity of treatment responses in rheumatoid arthritis using group based trajectory models: secondary analysis of clinical trial data

 

Total

Group

Significance

 

Good

Moderate

Poor

N = 163

N = 40

N = 76

N = 47

Sex, n (%)

Male

28 (17%)

10 (25%)

12 (16%)

6 (13%)

NS

 

Female

135 (83%)

30 (75%)

64 (84%)

41 (87%)

Ethnicity, n (%)

White

151 (93%)

38 (95%)

71 (93%)

42 (89%)

NS

 

Black

6 (4%)

0 (0%)

3 (4%)

3 (6%)

 

Asian

3 (2%)

1 (3%)

2 (3%)

0 (0%)

 

Mixed

1 (1%)

1 (3%)

0 (0%)

0 (0%)

 

Other ethnic group

2 (1%)

0 (0%)

0 (0%)

2 (4%)

Smoking, n (%)

Never smoked

56 (34%)

17 (43%)

24 (32%)

15 (32%)

NS

 

Ever smoked

104 (64%)

22 (55%)

51 (67%)

31 (66%)

 

Missing

3 (2%)

1 (3%)

1 (1%)

1 (2%)

Age (Years) Mean (SD)

56.2 (12.1)

55.3 (13.3)

57.3 (12.1)

55.3 (11.2)

NS

Disease Duration (Years) Mean (SD)

6.6 (6.8)

6.1 (5.6)

6.5 (6.1)

7.2 (8.6)

NS

BMI Mean (SD)

28.8 (8.6)

25.1 (4.7)

28.7 (6.2)

32.1 (12.5)

< 0.001

DAS28-ESR Mean (SD)

4.4 (0.5)

4.2 (0.6)

4.3 (0.5)

4.7 (0.4)

< 0.001

Tender Joint counts (28 joints) Mean (SD)

7.3 (4.0)

7.1 (3.9)

7.0 (4.4)

7.8 (3.5)

NS

Swollen joint counts (28 joints) Mean (SD)

4.2 (3.0)

4.6 (3.8)

4.1 (2.8)

4.1 (2.6)

NS

Erythrocyte Sedimentation Rate (mm/hr) Mean (SD)

17.9 (13.9)

12.4 (9.9)

18.4 (15.4)

21.6 (13.2)

0.008

C-Reactive Protein (mg/L) Mean (SD)

8.4 (10.6)

5.9 (6.8)

9.9 (13.2)

8.2 (8.0)

NS

Assessor Global Rating (mm) Mean (SD)

39 (18)

40 (22)

37 (18)

42 (15)

NS

Patient Global Assessment (mm) Mean (SD)

43.1 (19.1)

44.8 (22.6)

41.8 (18.9)

43.6 (16.3)

NS

HAQ Mean (SD)

1.2 (0.7)

0.9 (0.6)

1.3 (0.7)

1.5 (0.6)

< 0.001

Pain (mm) Mean (SD)

40 (23)

37 (26)

40 (23)

44 (19)

NS

Fatigue (mm) Mean (SD)

59 (25)

48 (30)

61 (23)

64 (21)

0.006

Patient Health Questionnaire-9 Mean (SD)

8.5 (6.1)

6.4 (4.9)

8.2 (5.9)

10.7 (7.0)

0.004

  1. Significance tests are Chi-Squared for categorical data and One Way ANOVA for numerical data