Regression modeling confirmed a highly significant relationship between pupillary response and light intensity, irrespective of starting pupil diameter, with values ranging from −2.6 log cd/m 2 (95 % CI: −2.7, −2.5) among reproductive-aged women in Bangladesh to −3.7 log cd/m 2 (95 % CI: −3.9, −3.6) in Zambian preschool-aged children.
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The sentences
There was a clear trend of increased pupillary response with increasing light intensity across all four sites (Fig. 4 ).