. 2018 May 15;33(9):859–871. doi: 10.1007/s10654-018-0407-7

Table 6.

Serum phosphate levels and chronic obstructive pulmonary disease (COPD) mortality in men from RS-I and RS-II, adjusted for age, BMI and smoking, follow-up until year 2012

	Individual cohorts			Studies combined
	n	HR^* (95% CI)	P	HR^† (95% CI)	p
RS-I	28	4.62 (2.06–10.3)	<0.001	4.44 (2.08–9.49)	< 0.001
RS-II	05	3.29 (0.35–30.7)	0.296	4.44 (2.08–9.49)	< 0.001

Statistically significant p-values (<0.05) are highlighted in bold font

*Hazard ratios from Weibull models, expressed per 1 mg/dL (0.32 mmol/L) increase in phosphate levels

^†Studies combined from meta-analyses using fixed-effect models