Table 1

Anchor groups and hierarchy for defining severity groups

Anchor hierarchy	Anchor measure	Time point	Definition
1a	PaGA53	Week 24	Group 1: ≤40 mm Group 2: 40mm<×≤60 mm Group 3: >60 mm
1b	PaGA37	Week 24	Group 1: ≤20 mm Group 2: 20mm<×≤40 mm Group 3: >40 mm
2a	PhGA53	Week 24	Group 1: ≤40 mm Group 2: 40mm<×≤60 mm Group 3: >60 mm
2b	PhGA37	Week 24	Group 1: ≤15 mm Group 2: 15mm<×≤30 mm Group 3: >30 mm
3	ESSDAI29	Week 24	Group 1: <5 Group 2: 5≤×≤13 Group 3: ≥14

ESSDAI, EULAR Sjögren’s Syndrome Disease Activity Index; EULAR, European Alliance of Associations for Rheumatology; PaGA, Patient Global Assessment; PhGA, Physician’s Global Assessment.