Table 2:

Logistic regressions analyzing the relations between pain conditions and past-year mental disorders among Canadian Armed Forces personnel

Physical conditions	Mental disorders, % (95% CI)

	MDE		GAD		Panic disorder		PTSD		AUD

	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No
Musculoskeletal problems	n = 247	n = 270	n = 147	n = 171	n = 114	n = 104	n = 187	n = 161	n = 81	n = 179

	12.2 (10.7–13.9)	6.1 (5.4–6.9)	6.9 (5.9–8.2)	3.7 (3.2–4.4)	5.7 (4.7–6.9)	2.4 (1.9–2.9)	9.0 (7.8–10.5)	3.6 (3.0–4.3)	4.5 (3.5–5.6)	4.5 (3.9–5.2)

Odds ratios (95% CI)

Model 1	2.13 (1.74–2.61)^*		1.92 (1.50–2.49)^*		2.52 (1.87–3.39)^*		2.68 (2.11–3.40)^*		0.99 (0.73–1.34)

Model 2	2.12 (1.73–2.61)^*		1.78 (1.37–2.32)^*		2.37 (1.75–3.21)^*		2.47 (1.92–3.17)^*		1.36 (0.99–1.86)

Model 3	1.80 (1.42–2.29)^*		1.04 (0.74–1.45)		1.75 (1.23–2.49)^†		1.88 (1.42–2.50)^*		1.04 (0.73–1.48)

% (95% CI)

Arthritis	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No

	n = 97	n = 419	n = 72	n = 246	n = 57	n = 159	n = 88	n = 260	n = 27	n = 233

	11.5 (9.4–14.0)	7.5 (6.8–8.2)	8.2 (6.6–10.4)	4.2 (3.7–4.8)	7.5 (5.7–9.6)	2.8 (2.4–3.4)	10.4 (8.3–13.1)	4.6 (4.0–5.2)	3.7 (2.5–5.3)	4.6 (4.1–5.2)

Odds ratios (95% CI)

Model 1	1.61(1.24–2.08)^*		2.05 (1.53–2.74)^*		2.73 (1.95–3.81)^*		2.44 (1.84–3.24)^*		0.78 (0.52–1.18)

Model 2	1.51(1.14–2.00)^†		1.73 (1.26–2.37)^†		2.41 (1.70–3.41)^*		2.09 (1.53–2.86)^*		1.50 (0.94–2.40)

Model 3	1.10 (0.76–1.60)		1.23 (0.81–1.85)		1.80 (1.15–2.82)^‡		1.86 (1.29–2.70)^†		1.26 (0.75–2.14)

% (95% CI)

Back problems	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No

	n = 207	n = 310	n = 149	n = 168	n = 106	n = 109	n = 174	n = 174	n = 67	n = 193

	13.2 (11.5–15.2)	6.4 (5.7–7.1)	9.6 (8.2–11.3)	3.2 (2.7–3.8)	7.4 (6.1–9.1)	2.1 (1.8–2.6)	11.2 (9.5–13.0)	3.5 (3.0–4.1)	4.4 (3.4–5.7)	4.5 (3.9–5.2)

Odds ratios (95% CI)

Model 1	2.26 (1.85–2.75)^*		3.21 (2.52–4.09)^*		3.65 (2.72–4.90)^*		3.46 (2.75–4.36)^*		0.96 (0.70–1.33)

Model 2	2.21 (1.79–2.74)^*		2.97 (2.29–3.85)^*		3.41 (2.52–4.62)^*		3.11 (2.44–3.97)^*		1.41 (1.00–1.97)^‡

Model 3	1.40 (1.05–1.87)^‡		1.78 (1.29–2.47)^*		1.90 (1.23–2.92)^†		2.17 (1.61–2.93)^*		0.99 (0.67–1.45)

% (95% CI)

Migraines	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No

	n = 107	n = 409	n = 55	n = 263	n = 49	n = 165	n = 86	n = 261	n = 28	n = 232

	17.4 (14.4–20.9)	7.0 (6.3–7.7)	8.9 (6.8–11.5)	4.3 (3.8–4.9)	8.0 (5.9–10.3)	2.9 (2.5–3.4)	14.5 (11.8–18.0)	4.3 (3.8–4.9)	5.8 (3.9–8.5)	4.4 (3.8–5.0)

Odds ratios (95% CI)

Model 1	2.80 (2.16–3.62)^*		2.18 (1.57–3.02)^*		2.85 (1.98–4.09)^*		3.80 (2.85–5.07)^*		1.35 (0.87–2.08)

Model 2	2.62 (2.00–3.44)^*		1.92 (1.38–2.66)^*		2.49 (1.71–3.64)^*		3.30 (2.41–4.50)^*		1.66 (1.07–2.57)^‡

Model 3	2.02 (1.43–2.86)^*		0.95 (0.60–1.48)		1.53 (0.97–2.42)		2.55 (1.75–3.72)^*		1.17 (0.71–1.94)

% (95% CI)

	Yes	No	Yes	No	Yes	No	Yes	No	Yes	No

Any pain condition	n = 351	n = 166	n = 220	n = 98	n = 164	n = 52	n = 269	n = 79	n = 125	n = 135

	11.3 (10.2–12.6)	5.0 (4.3–5.8)	6.9 (6.1–7.9)	2.8 (2.3–3.4)	5.4 (4.6–6.4)	1.6 (1.2–2.1)	8.7 (7.7–9.9)	2.2 (1.8–2.8)	4.6 (3.8–5.5)	4.4 (3.7–5.3)

Odds ratios (95% CI)

Model 1	2.42 (1.96–2.99)^*		2.59 (2.01–3.33)^*		3.63 (2.53–5.19)^*		4.17 (3.16–5.50)^*		1.04 (0.79–1.36)

Model 2	2.44 (1.96–3.04)^*		2.38 (1.82–3.09)^*		3.43 (2.37–4.95)^*		3.85 (2.88–5.17)^*		1.53 (1.14–2.06)^†

Model 3	1.80 (1.40–2.31)^*		1.32 (0.97–1.81)		2.22 (1.43–3.44)^*		2.97 (2.11–4.19)^*		1.19 (0.86–1.66)

Note: AUD = alcohol use disorder, CI = confidence interval, GAD = generalized anxiety disorder, MDE = major depressive episode, PAD = panic disorder, PTSD = posttraumatic stress disorder.
Model 1 = unadjusted odds ratio; Model 2 = odds ratio adjusted for age, sex, marital status, rank, Canadian Forces type, education, income, ethnicity; Model 3 = odds ratio adjusted for age, sex, marital status, rank, Canadian Forces type, education, income, ethnicity, all other mental disorders excluding the mental disorder of interest; Yes = prevalence rate of those who have the mental disorder of interest among each physical condition; No = prevalence of those who have the mental disorder of interest among those without the physical condition. Musculoskeletal problems = fibromyalgia and musculoskeletal problems; n = unweighted n. % and 95% CI were bootstrapped and weighted using Statistics Canada population weights. % computed using weighted counts rounded to base 20 as per Statistics Canada data release rules.
↵* p < 0.001.
↵† p < 0.01.
↵‡ p < 0.05.