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. 2022 Mar 17;6(3):e31894. doi: 10.2196/31894

Table 3.

Response at day 4 by demographics.

Demographic No response (N=58) Responded day 4 (N=69) P value
Arm, n (%) .72

Bidirectional messaging 28 (48.3) 36 (52.2)

Mobile survey 30 (51.7) 33 (47.8)
Sex, n (%) .37

Female 22 (37.9) 32 (46.4)

Male 36 (61.1) 37 (53.6)
Age (years), mean (SD) 38.1 (13.8) 38.9 (14) .76
Comorbidities, n (%) .74

0 23 (39.7) 28 (40.6)

1-2 15 (25.9) 14 (20.3)

>2 20 (34.5) 27 (39.1)
Type of surgery, n (%) .09

Knee 44 (75.9) 46 (66.7)

Shoulder 12 (20.7) 13 (18.8)

Hip 1 (1.7) 9 (13)

Elbow 1 (1.7) 1 (1.5)
Invasive procedure (open or nonlaparoscopic), n (%) 24 (41.4) 41 (59.4) .05
Quantity of opioid tabletsa prescribed, n (%) .69

<11 20 (34.5) 18 (26.1)

11-20 24 (41.4) 29 (42)

21-30 11 (19) 16 (23.2)

>30 3 (5.2) 6 (8.7)

aOpioid tablet in 5 mg oxycodone equivalents.