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. 2020 Aug 4;4(8):e15669. doi: 10.2196/15669

Table 1.

Sociodemographic characteristics of patients with peripheral arterial disease (PAD) divided into all patients, smartphone users, and non–smartphone users.

Sociodemographic characteristics All patients, n (%) Smartphone users, n (%) Non–smartphone users, n (%) P value (χ2 value)
Sex n=304 n=157 n=147

Male 203 (66.8)a 106 (52.2)b 97 (47.8)b .73 (0.121)
Age (years) n=301 n=155 n=146

40-49 18 (6.0) 11 (61.1) 7 (38.9) .74 (0.113)


50-59 58 (19.3) 34 (58.6) 24 (41.4) .46 (0.556)

60-69 102 (33.9) 64 (62.7) 38 (37.3) .09 (2.870)

70-79 85 (28.2) 35 (41.2) 50 (58.8) .32 (1.002)

≥80 37 (12.3) 11 (29.7) 26 (70.3) .12 (2.382)
Educational attainment (years) n=286 n=151 n=135

<10 40 (14.0) 19 (12.6) 21 (15.6) .91 (0.012)

10-11 22 (7.7) 13 (8.6) 9 (6.7) .76 (0.091)

12-13 133 (46.5) 67 (44.4) 66 (48.9) .09 (0.001)

14-17 66 (23.1) 35 (23.2) 31 (23.0) .32 (0.030)

>17 25 (8.7) 17 (11.3) 8 (5.9) .12 (1.013)
Employment status n=304 n=157 n=147

Currently employed 77 (25.3) 43 (55.8) 34 (44.2) .57 (0.319)


Retired 140 (46.1) 86 (42.9) 94 (57.1) .75 (0.100)

Retired due to illness

40 (13.2) 26 (65.0) 14 (35.0) .26 (0.258)
Burden of PAD n=304 n=157 n=147

Not at all 21 (6.9) 7 (33.3) 14 (66.7) .43 (0.612)


A little 49 (16.1) 23 (46.9) 26 (53.1) .92 (0.102)


Average 74 (24.3) 36 (48.6) 38 (51.4) .97 (0.002)


Fair 98 (32.2) 57 (58.2) 41 (41.8) .32 (1.007)

Great 62 (20.4) 34 (54.8) 28 (45.2) .72 (0.129)

Burden of disease 1.36 (0.76) 1.45 (0.73) 1.25 (0.76) .02 (2.33)
Burden of environmental conditions 0.90 (0.63) 1.02 (0.58) 0.77 (0.64) <.001 (3.377)

aThe percentage is based on the number of all responses for the associated sociodemographic characteristic (sex, age, educational attainment, employment status, and burden of PAD).

bThe percentage is based on the total number of observations within the associated sociodemographic characteristic group.