This article was composed with the objectives to prospectively look at the relationship between tea intake and the risk of ischaemic heart disease (IHD). In this large prospective study, daily tea intake was connected with a decreased risk of IHD.

Methods

• A prospective study utilizing the China Kadoorie Biobank; participants from 10 areas across China were selected amid 2004–2008 and followed up until 31 December 2013.
• After excluding participants with cancer, heart disease and stroke at baseline, the present study included 199293 men and 288082 women aged 30–79 years at baseline.
• Data on IHD incidence was gathered through disease registries and the new national health insurance databases.

Results

• Amid a median follow–up of 7.2 years, they documented 24665 (7.19 cases/1000 person–years) incident IHD cases and 3959 (1.13 cases/1000 person–years) major coronary events (MCEs).
• Tea intake was connected with decreased risk of IHD and MCE.
• In the whole cohort, contrasted and participants who never consumed tea amid the past 1 year, the multivariable–adjusted HRs and 95% CIs for less than daily and daily tea consumers were 0.97 (0.94 to 1.00) and 0.92 (0.88 to 0.95) for IHD, 0.92 (0.85 to 1.00) and 0.90 (0.82 to 0.99) for MCE.
• No linear patterns in the HRs across the amount of tea were seen in daily consumers for IHD and MCE (PLinear >0.05).
• The converse relationship between tea intake and IHD was stronger in rural (PInteraction 0.006 for IHD, <0.001 for MCE), non–obese (PInteraction 0.012 for MCE) and non–diabetes participants (PInteraction 0.004 for IHD).

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