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. 2017 Aug 16;8:67–71. doi: 10.1016/j.pmedr.2017.08.005

Table 1.

Descriptive statistics of study variables by outcome status (n = 3201).

Study variables N (%) No or mild depression n (%) Moderate or severe depression n (%) p-Value
Gender
Male 1602 50.05 1513 (42.27) 89 (2.78) < 0.0001
Female 1599 49.95 1432 (44.74) 167 (5.22)



Education level
Less than High school graduate/GED 427 13.34 367 (11.47) 60 (1.88) < 0.001
High school graduate/GED or equivalent or more 2773 86.66 2577 (80.95) 196 (6.13)



Race
Non-Hispanic White 1350 42.17 1226 (38.30) 124 (3.87) 0.0061
Non-Hispanic Black 802 25.05 739 (23.09) 63 (1.97)
Hispanic 464 14.50 422 (13.18) 42 (1.31)
Others 585 18.28 558 (17.43) 27 (0.84)



Age
20–35 years 1104 34.49 1018 (31.80) 86 (2.69) 0.0226
36–50 years 843 26.34 763 (23.84) 80 (2.50)
51–65 years 777 24.27 710 (22.18) 67 (2.09)
> 65 years 477 14.90 454 (14.18) 23 (0.72)



BMI
Underweight 52 1.58 46 (1.46) 6 (0.13) < 0.0001
Normal 1074 34.03 1013 (32.10) 61 (1.93)
Overweight 1041 32.98 970 (30.74) 71 (2.25)
Obese 991 31.40 876 (27.76) 115 (3.64)



Poverty
Yes (below poverty threshold) 617 20.63 522 (17.45) 147 (4.91) < 0.0001
No (above poverty threshold) 2374 79.37 2227 (74.46) 95 (3.18)



Screen time
< 4 h per day 1481 46.27 1399 (43.71) 82 (2.56) < 0.001
4 to 6 h per day 1248 38.99 1129 (35.27) 119 (3.72)
> 6 h per day 472 14.75 417 (13.03) 55 (1.72)