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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: Clin Rheumatol. 2020 Oct 23;40(3):965–971. doi: 10.1007/s10067-020-05467-9

Table 2.

GEE models predicting PROM1 non-completion across all observed visits

Univariate analysis2
Multivariate analysis3
Odds ratio
(95% CI)
P-value Odds ratio
(95% CI)
P-value
Calcinosis = Severe or Mild4 2.89
(1.33, 6.29)
0.007 3.97
(1.36, 11.54)
0.012
Hand Modified Rodnan Skin Score = Severe5 0.91
(0.46, 1.79)
0.781 0.49
(0.19, 1.24)
0.132
Small Joint Contracture6 1.06
(0.67, 1.66)
0.805 1.06
(0.61, 1.85)
0.826
Acro-osteolysis7 2.95
(1.41,6.20)
0.004 3.57
(1.37, 9.32)
0.001
Active Digital Ulcer (including Gangrene)8 1.20
(0.64, 2.24)
0.564 0.86
(0.39, 1.88)
0.700
1

Patient reported outcome measures (PROMs): Participant Global, Scleroderma Health, Gastrointestinal Tract (GIT), Patient Reported Outcome Measurement Information System (PROMIS), Patient Skin and Dyspnea Assessments (does not include Resource Utilization Questionnaire).

2

Results are 5 different univariate (unadjusted) generalized estimating equations (GEE) models.

3

Results are 5 different multivariate GEE models adjusting for age, gender, race, ethnicity, employment status, marital status, email interest and tendon friction rubs.

4

Number of events analyzed (N) for univariate and multivariate analyses is 581 and 489 respectively.

5

N for univariate and multivariate analyses is 593 and 495, respectively.

6

N for univariate and multivariate analyses is 572 and 485, respectively.

7

N for univariate and multivariate analyses is 568 and 481, respectively.

8

N for univariate and multivariate analyses is 596 and 497, respectively.