Table 3 Associations between low social support and DAS28-CRP remission in patients with rheumatoid arthritis (n = 2800); overall and analyses of subgroups

All patients,n

500/1894

479/1838

426/1628

 OR (95% CI)

0.86 (0.69–1.07)

0.93 (0.74–1.16)

0.89 (0.73–1.10)

0.96 (0.77–1.18)

0.89 (0.72–1.10)

0.89 (0.72–1.10)

Women,n

354/1338

341/1294

315/1168

 OR (95% CI)

0.86 (0.66–1.27)

0.93 (0.71–1.22)

0.93 (0.73–1.18)

0.99 (0.77–1.28)

0.88 (0.69–1.13)

0.89 (0.69–1.15)

Men,n

146/556

138/541

111/460

 OR (95% CI)

0.82 (0.55–1.24)

0.90 (0.59–1.37)

0.80 (0.54–1.16)

0.86 (0.58–1.27)

0.89 (0.59–1.36)

0.91 (0.59–1.39)

ACPA-positive,n

322/1210

311/1189

309/1120

 OR (95% CI)

0.89 (0.68–1.17)

0.96 (0.72–1.26)

0.88 (0.68–1.14)

0.92 (0.71–1.19)

0.93 (0.72–1.20)

0.94 (0.73–1.21)

ACPA-negative,n

169/639

162/605

111/482

 OR (95% CI)

0.80 (0.54–1.20)

0.89 (0.59–1.35)

0.93 (0.65–1.32)

1.00 (0.69–1.46)

0.77 (0.51–1.17)

0.79 (0.52–1.21)

Ever smokers,n

350/1182

338/1150

294/1026

 OR (95% CI)

0.82 (0.62–1.07)

0.86 (0.65–1.13)

0.89 (0.69–1.14)

0.93 (0.72–1.20)

0.97 (0.75–1.26)

1.02 (0.78–1.32)

Never smokers,n

136/637

128/615

124/557

 OR (95% CI)

1.09 (0.73–1.63)

1.14 (0.76–1.71)

1.03 (0.70–1.52)

1.05 (0.71–1.55)

0.78 (0.52–1.15)

0.80 (0.54–1.19)

Education ≤12 years,n

399/1288

384/1278

342/1138

 OR (95% CI)

0.89 (0.69–1.15)

0.93 (0.72–1.20)

0.94 (0.74–1.18)

0.97 (0.76–1.23)

0.94 (0.74–1.20)

0.95 (0.74–1.21)

Education >12 years,n

87/530

82/487

76/445

 OR (95% CI)

0.88 (0.54–1.45)

0.91 (0.55–1.51)

0.89 (0.56–1.43)

0.93 (0.58–1.51)

0.92 (0.56–1.51)

0.98 (0.59–1.62)

Ever drinkers,n

417/1665

399/1608

357/1445

 OR (95% CI)

0.94 (0.74–1.19)

0.97 (0.76–1.19)

0.90 (0.72–1.12)

0.92 (0.74–1.15)

1.03 (0.82–1.30)

1.09 (0.86–1.38)

Never drinkers,n

66/152

65/155

58/137

 OR (95% CI)

0.62 (0.30–1.31)

0.61 (0.29–1.31)

1.22 (0.67–2.23)

1.31 (0.71–2.45)

0.34 (0.17–0.66)

0.35 (0.18–0.68)

Symptom duration above median,n

258/976

241/952

207/810

 OR (95% CI)

0.82 (0.60–1.12)

0.88 (0.64–1.21)

0.89 (0.66–1.18)

0.97 (0.72–1.31)

0.96 (0.71–1.30)

1.03 (0.76–1.41)

Symptom duration below median,n

242/918

238/883

219/818

 OR (95% CI)

0.92 (0.67–1.27)

1.01 (0.73–1.40)

0.92 (0.69–1.24)

0.98 (0.72–1.32)

0.82 (0.61–1.11)

0.82 (0.61–1.11)