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. 2022 Aug 1;18(8):2069–2074. doi: 10.5664/jcsm.10084

Table 2.

Comparison of participant characteristics between the in-person and video hookup instructions group.

In-Person Instructions (n = 49) Video Instructions (n = 51) P
Demographics
 Age, y 50.5 ± 10.3 48.4 ± 11.5 .43
 Males, n (%) 38 (77.6) 33 (64.7) .16
BMI, kg/m2 29.6 ± 5.9 30.8 ± 6.3a .36
Sleep study
 REI, events/h 11.0 ± 12.1b 16.9 ± 22.3c .24
 ODI, events/h 9.3 ± 11.2b 14.3 ± 18.3c .15

Values are mean ± standard deviation or n (%). an = 50. bn = 48. cn = 49. P values were calculated using Mann–Whitney U test, except for sex, where χ2 was used. BMI = body mass index, ODI = oxygen desaturation index, REI = respiratory event index.