PubMed Central, : RMMJ Rambam Maimonides Medical Journal Rambam Health Care Campus 2026; 17(3): e0019. ISSN: 2076-9172Published online 2026 July 31. doi: 10.5041/RMMJ.10579

Table 1.

Sociodemographic and Lifestyle Characteristics by Sex.

Variable	Men (n=51,251)	Women (n=33,647)	P Value
Age, years (mean±SD)	39.7±10.3	39.3±10.2	<0.001^*
Social class I, % (95% CI)	5.5 (5.3–5.7)	7.0 (6.7–7.3)	<0.001^†
Social class II, % (95% CI)	17.6 (17.3–17.9)	33.4 (33.0–33.8)
Social class III, % (95% CI)	76.9 (76.6–77.3)	59.6 (59.1–60.1)
Current smoker, % (95% CI)	37.3 (36.8–37.7)	32.8 (32.3–33.3)	<0.001^†
Adherent to Mediterranean diet, % (95% CI)	41.0 (40.6–41.5)	51.4 (50.9–51.9)	<0.001^†
Physically active (IPAQ), % (95% CI)	45.6 (45.2–46.1)	52.3 (51.8–52.8)	<0.001^†
No insomnia (ISI), % (95% CI)	25.7 (25.3–26.1)	65.1 (64.6–65.6)	<0.001^†
Subthreshold insomnia, % (95% CI)	50.6 (50.1–51.1)	27.6 (27.1–28.0)
Moderate insomnia, % (95% CI)	16.8 (16.4–17.2)	5.5 (5.2–5.8)
Severe insomnia, % (95% CI)	6.9 (6.6–7.1)	1.8 (1.6–2.0)

* Student’s t-test or Mann–Whitney test according to normality (Shapiro–Wilk).

† Pearson’s chi-square test. 95% CIs for proportions calculated as p ± 1.96√[p(1−p)/n].

RMMJ Rambam Maimonides Medical Journal Rambam Health Care Campus 2026; 17(3): e0019. ISSN: 2076-9172

Published online 2026 July 31. doi: 10.5041/RMMJ.10579