Table 3

Patients with a psychological diagnosis in relation to sociodemographic characteristics and mental health as measured by the General Health Questionnaire.

	DNSGP1				DNSGP2

	n	% P diag	OR	95% CI	n	% P diag	OR	95% CI
Total	8924	7.2			9685	4.2

Sex:
Male (reference)	4354	5.0	1.00		5357	2.9	1.00
Female	4570	9.1	1.54^a	1.29 to 1.84	4328	5.3	1.69^b	1.36 to 2.11

Age (years):
18–24 (reference)	1237	3.9	1.00		745	2.7	1.00
25–44	4059	5.0	0.99	0.69 to 1.42	3428	3.4	1.27	0.75 to 2.15
45–64	2407	9.5	1.81^a	1.25 to 2.63	3525	4.5	1.80^b	1.04 to 3.11
65–74	833	11.5	2.03^a	1.33 to 3.10	1146	4.8	1.73	0.95 to 3.17
≥75	388	15.6	2.59^a	1.62 to 4.14	841	7.3	2.20^b	1.18 to 4.08

Education:
Primary	2411	10.6	1.50^b	1.07 to 2.12	1436	6.9	1.37	0.98 to 1.92
Lower	3711	7.0	1.37	0.99 to 1.90	3256	3.9	0.92	0.68 to 1.24
Secondary	1798	5.2	1.12	0.77 to 1.62	2927	3.6	1.02	0.75 to 1.39
Higher (reference)	1004	4.5	1.00		2053	3.8	1.00

Marital status:
Married (reference)	5335	7.3	1.00		6396	3.8	1.00
Unmarried	2891	3.9	0.55^a	0.43 to 0.70	2039	3.6	1.10	0.81 to 1.51
Divorced	256	14.6	1.72^a	1.19 to 2.50	496	6.5	1.37	0.93 to 2.02
Widowed	442	19.7	1.44^b	1.07 to 1.95	745	8.6	1.50^b	1.06 to 2.12

GHQ < 2	7446	5.0	1.00		7454	3.0	1.00

≥2	1478	17.6	4.22^a	3.54 to 5.02	2202	8.6	2.94^a	2.40 to 3.61

↵a P<0.005.
↵b P<0.05. DNSGP1 = First Dutch National Survey of General Practice. DNSGP2 = Second Dutch National Survey of General Practice. OR = odds ratio. P diag = psychological diagnosis.