Table 4

Sociodemographic, health and lifestyle characteristics by latent classes of Natsal-3 participants aged ≥45 years (n=4540)

Class label	Class 1	Class 2	Class 3	Class 4	P value
	Content Caseys (%)	Infrequent Indigos (%)	Low-Functioning Lees (%)	Multiple-Partner Morgans (%)
	(n=2158)	(n=1727)	(n=424)	(n=231)
Age group					<0.0001
45–54	47	21	46	56
55–64	34	35	35	34
65–74	20	45	19	10
Ethnicity					0.12
White	94	95	94	92
Mixed	0.9	0.6	0.9	1
Asian	3	2	3	1
Black	2	2	2	5
Other	0.5	0.7	0.2	0.9
Relationship status					<0.0001
Married or civil partnership	72	34	71	26
Living with a partner	9	3	9	5
Steady relationship, not cohabiting	13	0.7	7	22
No steady relationship	7	63	13	48
Education					<0 .0001
No academic qualifications	28	43	27	33
Academic qualifications typically gained at age 16 years*	37	28	34	37
Studying for or have attained further academic qualifications	34	27	38	30
Quintile of Index of Multiple Deprivation					<0.0001
1 (least deprived)	26	19	25	20
2	25	22	19	21
3	19	21	19	19
4	16	19	17	20
5 (most deprived)	14	20	20	20
Sought help or advice for sex life in the past year					<0.0001
Yes	7	7	32	13
No	93	94	68	87
Currently taking medicine prescribed by a doctor for depression					<0.0001
Yes	5	10	13	10
No	95	90	87	90
Medications in last year that have limited sexual activity or enjoyment					<0.0001
Yes	7	9	23	11
No	93	88	77	89
Respondent’s opinion of own health					<0.0001
Very good	37	25	25	31
Good	45	38	41	42
Fair	15	26	26	20
Bad	4	9	7	6
Very bad	0.6	2.9	1.9	0.9
Respondent has a longstanding illness, disability or infirmity					<0.0001
None	59	44	46	60
Non-limiting	20	21	20	16
Limiting	21	35	34	25