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. Author manuscript; available in PMC: 2008 May 12.
Published in final edited form as: Lancet. 2007 Oct 6;370(9594):1230–1239. doi: 10.1016/S0140-6736(07)61539-6

Table 5.

Morbidity incidence rates by treatment group

Placebo (n=2032)
 Zinc (n=2038)
 RR (95% CI)
Episodes (n) Person-years Episodes/child/year Episodes (n) Person-years Episodes/child/year
Diarrhoea (stools/day)
    ≥3 5074 1331·4 3·81 5002 1375·0 3·64 0·96 (0·91−1·02)
    ≥4 4147 1340·6 3·12 4142 1384·6 2·99 0·96 (0·90−1·02)
    ≥5 2802 1350·8 2·07 2822 1394·5 2·02 0·96 (0·90−1·03)
    ≥6 1814 1356·4 1·34 1865 1400·4 1·33 0·96 (0·88−1·05)
    ≥7 1047 1359·9 0·77 1057 1404·3 0·75 0·96 (0·87−1·07)
Persistent diarrhoea 85 1359·7 0·06 93 1404·0 0·07 1·06 (0·77−1·46)
Dysentery 414 1359·5 0·30 427 1404·2 0·30 1·06 (0·87−1·28)
ALRI 1887 1351·1 1·40 1999 1395·0 1·43 1·01 (0·92−1·10)

RR=relative risk. ALRI=acute lower respiratory illness.