Table 4.

Variables associated with musculoskeletal and mental disorders

Musculoskeletal disorders (MSD)
Independent variables	MSD n (%)	Crude OR (95 % CI)	Adjusted ORa (95 % CI)
Age (years)
16–19	17 (25.0)	1	1
20–22	38 (29.7)	1.3 (0.7–2.5)	1.2 (0.6–2.7)
23–26	58 (50.4)	3.1 (1.6–5.9)**	3.1 (1.4–6.7)**
27–30	10 (23.8)	0.9 (0.4–2.3)	1.0 (0.4–2.8)
Socioeconomic status
High	16 (43.2)	1	1
Middle	67 (40.1)	0.9 (0.4–1.8)	1.0 (0.5–2.2)
Low	31 (24.8)	0.4 (0.2–0.9)*	0.5 (0.2–1.2)
Mental disorder
No	60 (27.6)	1	1
Yes	62 (46.3)	2.3 (1.4–3.5)***	1.8 (1.1–3.1)*
Irritation (8–56)	/	1.04 (1.02–1.06)**	1.02 (1.00–1.05)
Job satisfaction (0–100)	/	0.98 (0.97–0.99)**	0.99 (0.97–1.01)
Mental disorder
Independent variables	Mental disorder n (%)	Crude OR (95 % CI)	Adjusted ORa (95 % CI)
Apprenticeship trade
General healthcare and nursing	44 (31.0)	1	1
Geriatric nursing	50 (38.5)	1.4 (0.8–2.3)	1.4 (0.8–2.7)
Early childhood education	40 (50.0)	2.2 (1.3–3.9)**	2.9 (1.4–6.0)**
Socioeconomic status
High	9 (24.3)	1	1
Middle	73 (43.7)	2.4 (1.1–5.4)*	2.2 (0.9–5.4)
Low	43 (34.7)	1.7 (0.7–3.8)	1.5 (0.6–4.1)
MSD
No	72 (31.4)	1	1
Yes	62 (50.8)	2.3 (1.4–3.5)***	2.1 (1.2–3.7)**
Self-efficacy (10–40)	/	0.89 (0.85–0.94)***	0.93 (0.87–0.99)*
Irritation (8–56)	/	1.07 (1.05–1.10)***	1.05 (1.02–1.08)**
Job satisfaction (0–100)	/	0.98 (0.97–0.99)**	0.98 (0.97–1.00)

Multivariate logistic regression analysis to determine variables associated with MSD was performed with n = 318 participants (Nagelkerke’s Pseudo R² = 0.18). Multivariate logistic regression analysis to determine variables associated with mental disorder was performed with n = 310 participants (Nagelkerke’s Pseudo R² = 0.25)

^aAdjusted for the other variables in the model

OR odds ratio, CI confidence interval; *p <0.05, **p <0.01, ***p <0.001