Table 3 Phone usage experience and preference by notification method

Use mobile phone

2749 (83.2)

1597 (96.8)

811 (97.8)

341 (41.4)

< 0.001

Own phone

< 0.001

 Self

2355 (86.0)

1408 (88.3)

750 (92.5)

197 (58.8)

 Family (spouse, child)

359 (13.1)

175 (11.0)

59 (7.3)

125 (37.3)

 Friends, neighbors

26 (1.0)

11 (0.7)

2 (0.3)

13 (3.9)

Preferred method of receiving negative test result

< 0.001

 Text

859 (26.0)

30 (1.8)

823 (99.3)

6 (0.7)

 Phone call

1638 (49.6)

1620 (98.2)

6 (0.7)

12 (1.5)

 Home visit

806 (24.4)

0

0

806 (97.8)

Preferred method of receiving positive test result

< 0.001

 Text

745 (22.6)

37 (2.2)

708 (85.4)

0

 Phone call

1670 (50.6)

1566 (94.9)

104 (12.6)

0

 Home visit

888 (26.9)

47 (2.9)

17 (2.1)

824 (100)

Comfort with reading texts

< 0.001

 Very comfortable

651 (19.8)

330 (20.1)

277 (33.4)

44 (5.4)

 Comfortable

1455 (44.3)

774 (47.0)

509 (61.4)

172 (21.3)

`

 Not comfortable

295 (9.0)

131 (8.0)

19 (2.3)

145 (17.9)

 Not comfortable at all

68 (2.1)

42 (2.6)

2 (0.2)

24 (3.0)

 Cannot read

815 (24.8)

369 (22.4)

22 (2.7)

424 (52.4)

Comfort with writing texts

< 0.001

 Very comfortable

645 (19.7)

323 (20.0)

281 (34.1)

41 (5.1)

 Comfortable

1277 (39.0)

657 (40.0)

475 (57.6)

145 (18.0)

 Not comfortable

372 (11.4)

179 (10.9)

33 (4.0)

160 (19.8)

 Not comfortable at all

68 (2.1)

44 (2.7)

1 (0.1)

23 (2.9)

 Cannot read

913 (27.9)

440 (26.8)

35 (4.2)

438 (54.3)

Comfort with receiving confidential information via text

< 0.001

 Very comfortable

671 (21.1)

331 (20.1)

298 (36.0)

42 (5.7)

 Comfortable

1285 (40.5)

660 (40.9)

483 (58.4)

142 (19.4)

 Not comfortable

893 (28.1)

477 (29.5)

38 (4.6)

378 (51.5)

 Not comfortable at all

327 (10.3)

147 (9.1)

8 (1.0)

172 (23.4)

Notified on first attempt

2443 (74.0)

899 (54.5)

829 (100)

715 (86.8)

< 0.001