Hedman, A., Nygård, L., Almkvist, O., & Kottorp, A. (2013). Patterns of functioning in older adults with mild cognitive impairment: a two-year study focusing on everyday technology use. Aging & Mental Health, 17(6), 679–688.
After publication of the above article a coding mistake was detected by the authors, revealing that three more participants in the stable/ascending pattern had converted to dementia at two years. Below corrections are presented, bolded or crossed-through.
Results
Page 683, first paragraph of the Results section: During the study time, 13 of the 32 participants (41%) converted to dementia […]. Thus, 16 participants (50%) were still classified as having MCI two years after inclusion.
Page 683, Figure 2: Four persons circled (indicating progression to dementia) in the white cells highlighting the stable/ascending pattern.
Page 683, Table 4: Diagnostic outcome in the stable/ascending pattern after 2 years was dementia 40%, reversed to normal 20%, and MCI 40%. Note1: AD (n = 4).
Page 684, first section in the left column: These three persons converted to dementia. At two years 40% of the persons in this pattern had progressed to dementia…
Page 684, last paragraph of the Results section: […] the relationship between a descending pattern of functioning and conversion to dementia was non-significant: chi-square (df = 1, n = 32) = 2.50, exact p = .150.
Discussion
Page 685, end of first paragraph in the right column: On the basis of their pattern of increasing functional limitations, they likely face a higher risk of impending progression to dementia than persons in the stable/ascending pattern.
Page 685, end of third paragraph in the right column: As high educational level may postpone functional decline according to the theory of cognitive reserve…
Page 685, fourth paragraph in the right column: In this sample of 32, 13 persons (41%) converted from MCI to dementia within the first two years after baseline investigation. […] Our findings indicate that a descending pattern of functioning in ET use or activity involvement is significantly associated with a higher risk of progressing to dementia.
Page 686, in the middle of the third paragraph on the left column: Importantly, of the 13 persons converting…
The authors apologise for this error.