Association of dietary calcium intake with chronic bronchitis and emphysema

Li, Xuefang; Li, Zhijun; Ye, Jian; Ye, Wu

doi:10.1186/s41043-025-00843-0

Journal of Health, Population and Nutrition

Table 4 Subgroup analysis of gender, age and smoking status about associations between dietary calcium intake and CBE

From: Association of dietary calcium intake with chronic bronchitis and emphysema

Characteristic	Calcium intake (mg/day)	Unadjusted model			Adjusted model ^a
Characteristic	Calcium intake (mg/day)	OR	95% CI	P-Value	OR	95% CI	P-Value
Gender
Male	≤ 543	1.0 (Reference)	1.0 (Reference)		1.0 (Reference)	1.0 (Reference)
	544–829	0.890	0.889–0.892	< 0.001	1.024	1.022–1.026	< 0.001
	830–1199	0.952	0.951–0.954	< 0.001	1.203	1.201–1.206	< 0.001
	> 1200	0.604	0.603–0.606	< 0.001	0.854	0.852–0.856	< 0.001
Female	≤ 543	1.0 (Reference)	1.0 (Reference)		1.0 (Reference)	1.0 (Reference)
	544–829	0.800	0.799–0.801	< 0.001	0.886	0.884	< 0.001
	830–1199	0.555	0.555–0.556	< 0.001	0.674	0.673	< 0.001
	> 1200	0.847	0.846–0.848	< 0.001	1.052	1.050	< 0.001
Age (years)
≤ 40	≤ 543	1.0 (Reference)	1.0 (Reference)		1.0 (Reference)	1.0 (Reference)
	544–829	0.780	0.778–0.782	< 0.001	0.965	0.962–0.967	< 0.001
	830–1199	0.546	0.545–0.547	< 0.001	0.764	0.762–0.766	< 0.001
	> 1200	0.588	0.586–0.589	< 0.001	0.817	0.815–0.820	< 0.001
> 40	≤ 543	1.0 (Reference)	1.0 (Reference)		1.0 (Reference)	1.0 (Reference)
	544–829	0.820	0.819–0.821	< 0.001	0.930	0.929–0.931	< 0.001
	830–1199	0.713	0.712–0.714	< 0.001	0.885	0.884–0.886	< 0.001
	> 1200	0.733	0.732–0.734	< 0.001	1.018	1.016–1.019	< 0.001
Smoking status
Yes	≤ 543	1.0 (Reference)	1.0 (Reference)		1.0 (Reference)	1.0 (Reference)
	544–829	0.869	0.868–0.870	< 0.001	0.986	0.984–0.987	< 0.001
	830–1199	0.708	0.707–0.709	< 0.001	0.870	0.869–0.872	< 0.001
	> 1200	0.849	0.847–0.850	< 0.001	1.120	1.118–1.122	< 0.001
No	≤ 543	1.0 (Reference)	1.0 (Reference)		1.0 (Reference)	1.0 (Reference)
	544–829	0.750	0.749–0.751	< 0.001	0.845	0.843–0.846	< 0.001
	830–1199	0.635	0.634–0.637	< 0.001	0.826	0.825–0.828	< 0.001
	> 1200	0.460	0.459–0.460	< 0.001	0.707	0.706–0.709	< 0.001

CBE, chronic bronchitis and emphysema; OR, odds ratio; CI, confidence interval
^a Adjusted for age, gender, race, education, ratio of family income to poverty, marital status, BMI, smoking, dietary energy and dietary protein intake

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ISSN: 2072-1315

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