PubMed Central, : RMMJ Rambam Maimonides Medical Journal Rambam Health Care Campus 2026; 17(2): e0014. ISSN: 2076-9172Published online 2026 April 26. doi: 10.5041/RMMJ.10574

Table 2.

Mutual Influence of Age and Residential Altitude on Hb Concentration of Male and Female Participants.

Age (years)	Place of Residence	Female		Male

		Number	Hb (g/dL)	Number	Hb (g/dL)
18–30	Kfar Kama	265	12.43±1.02 (8.40–15.10)	137	15.01±0.88 (12.50–17.30)
18–30	Rihaniya	84	12.65±1.06 (8.30–15.00)	59	15.23±1.09 (12.80–18.70)

31–40	Kfar Kama	203	12.43±1.08 (7.80–14.90)	132	14.82±1.01 (10.10–17.70)
31–40	Rihaniya	81	12.56±1.34 (7.90–14.90)	41	15.03±0.89 (12.90–17.40)

41–50	Kfar Kama	183	12.60±1.10 (8.50–15.20)	121	14.84±1.15 (11.00–18.00)
41–50	Rihaniya	61	13.1±0.95 (10.60–16.00)	50	15.03±1.21 (12.10–17.70)

51–60	Kfar Kama	129	12.87±1.09 (9.60–17.00)	142	14.83±1.38 (8.70–18.10)
51–60	Rihaniya	51	12.89±1.07 (9.20–15.40)	52	14.43±1.39 (10.40–17.40)

61–70	Kfar Kama	150	12.77±1.08 (9.20–15.90)	149	14.17±1.42 (5.70–16.80)
61–70	Rihaniya	58	13.10±1.29 (8.70–17.20)	43	14.66±1.39 (9.10–18.10)

71–80	Kfar Kama	106	12.24±1.34 (7.70–15.30)	70	13.85±1.68 (8.10–17.50)
71–80	Rihaniya	29	12.58±1.44 (7.40–14.70)	32	14.00±1.59 (10.00–16.20)

>80	Kfar Kama	43	11.31±1.38 (8.70–13.40)	28	12.35±1.89 (8.90–16.50)
>80	Rihaniya	9	12.29±1.5 (9.00–14.10)	12	12.17±2.38 (7.60–15.40)

	P for interaction (Age × Sex × Village)		0.305		0.898

Data presented as means±SD (range). N indicates the number of participants. Interaction P-values were obtained from multivariable regression models including age and sex as continuous variables.