Table 8. Pairwise associations between specific somatic symptoms at baseline and at follow-up.

Symptom at baseline	Symptom at follow-up
	Faintness or dizziness	Pains in heart or chest	Nausea or upset stomach	Trouble getting breath	Hot or cold spells	Feeling weak in parts of body	Numbness or tingling in parts of body
	(n = 741)	(n = 542)	(n = 1,254)	(n = 558)	(n = 1,445)	(n = 1,778)	(n = 1,538)
Faintness or dizziness (n = 1,030)	5.0 (293)	2.6 (149)	2.4 (295)	2.1 (133)	2.1 (304)	2.3 (377)	2.5 (351)
Pains in heart or chest (n = 753)	2.6 (155)	5.6 (182)	2.0 (196)	2.6 (115)	1.8 (216)	2.0 (264)	2.1 (252)
Nausea or upset stomach (n = 1,719)	2.6 (287)	2.0 (190)	3.6 (545)	1.7 (179)	1.6 (421)	2.0 (556)	1.7 (462)
Trouble getting breath (n = 748)	2.6 (148)	3.2 (132)	2.1 (202)	6.6 (199)	1.8 (215)	2.3 (286)	2.2 (253)
Hot or cold spells (n = 1,833)	2.2 (285)	2.1 (219)	2.0 (438)	1.9 (208)	3.9 (709)	2.1 (620)	2.0 (557)
Feeling weak in parts of body (n = 2,317)	2.6 (361)	2.4 (263)	2.1 (538)	2.2 (265)	2.0 (611)	4.3 (983)	2.9 (760)
Numbness or tingling in parts of body (n = 1,926)	2.5 (306)	2.7 (249)	2.0 (452)	1.9 (220)	1.9 (534)	2.7 (729)	5.1 (822)

Associations are summarised by odds ratios adjusted for sex and age (in 10-year strata), with the number of participants reporting both symptoms in brackets. Analysis was restricted to the 8,856 participants who provided complete information about somatic symptoms at both baseline and follow-up.