Table 2.
Differences in the interval between use by participant characteristics (N=66).
| Characteristics | Participant, n (%) | Interval, median (IQR) | P value | |||||
| Age group (years) | .90a | |||||||
|
|
<35 | 37 (56) | 2.88 (2.00-5.25) |
|
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|
|
>35 | 29 (44) | 3.00 (2.00-5.50) |
|
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| Birth history | .01a,b | |||||||
|
|
Primipara (average age 33.5 years) | 26 (39) | 2.05 (1.97-4.18) |
|
||||
|
|
Multipara (average age 33.9 years) | 40 (61) | 4.00 (2.22-6.00) |
|
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| Educational background | .05c | |||||||
|
|
High schools | 6 (9) | 7.00 (4.13-8.75) |
|
||||
|
|
Junior college or professional school | 29 (44) | 3.00 (2.05-5.25) |
|
||||
|
|
University or graduate school | 31 (47) | 2.50 (2.00-4.40) |
|
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| Job type | .54c | |||||||
|
|
Professional and technical | 32 (48) | 2.88 (1.92-4.90) |
|
||||
|
|
Clerical | 20 (30) | 3.17 (2.03-5.75) |
|
||||
|
|
Sales, service, agriculture, production, and construction | 14 (21) | 3.44 (2.12-5.96) |
|
||||
| Employment status | .31a | |||||||
|
|
Full-time | 54 (82) | 3.25 (2.00-5.63) |
|
||||
|
|
Part-time | 12 (18) | 2.42 (1.85-4.21) |
|
||||
| Smartphone use time (hours per day)d | .74c | |||||||
|
|
<2 | 23 (37) | 3.00 (2.11-5.50) |
|
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|
|
2-3 | 17 (27) | 2.88 (2.00-5.40) |
|
||||
|
|
>3 | 22 (36) | 2.80 (2.00-4.43) |
|
||||
aMann-Whitney U-test.
bP<.05.
cKruskal-Wallis test.
dWith missing data (n=62).