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Table 1 Characteristics of study population and prevalence of calling while driving (CWD)a

From: Cellphone laws and teens’ calling while driving: analysis of repeated cross-sectional surveys in 2013, 2015, 2017, and 2019

Variables

Unweighted N

% of CWD (95%CI)b

Never

(0 day)

Sometimes

(1–9 days)

Frequent

(10–30 days)

Overall

65,044

47 (45, 49)

36 (35, 38)

16 (15, 18)

Survey year

 2013

12,166

44 (42, 46)

37 (36, 39)

18 (17, 20)

 2015

8717

46 (44, 49)

39 (37, 41)

14 (13, 16)

 2017

27,168

50 (47, 53)

36 (33, 38)

15 (13, 17)

 2019

16,993

54 (52, 55)

35 (33, 36)

12 (11, 13)

Age (Years)

 15

2787

71 (66, 77)

22 (17, 26)

7 (4, 11)

 16

26,256

60 (58, 62)

30 (28, 33)

10 (8, 12)

 17

25,986

43 (40, 46)

39 (36, 41)

18 (16, 20)

  ≥ 18

10,015

37 (33, 41)

41 (38, 44)

22 (19, 25)

Sex

 Female

31,498

48 (45, 50)

37 (36, 39)

15 (13, 16)

 Male

33,230

47 (45, 49)

35 (33, 38)

18 (16, 19)

 Missing

316

   

Race

 White

41,452

40 (38, 42)

40 (38, 42)

20 (19, 22)

 Black or African American

7128

58 (53, 63)

30 (25, 34)

12 (9, 15)

 Hispanic/Latino

7547

55 (51, 59)

33 (30, 36)

12 (9, 15)

 Otherc

7304

57 (52, 62)

34 (28, 39)

9 (7, 12)

 Missing

1613

   

States

 AK

1262

54 (50, 58)

35 (31, 39)

11 (8, 13)

 AR

907

37 (33, 42)

37 (33, 41)

26 (22, 30)

 CT

3717

62 (60, 64)

29 (27, 31)

9 (8, 10)

 MD

30,657

67 (66, 68)

25 (24, 26)

8 (7, 8)

 MA

4201

54 (50, 58)

35 (32, 37)

12 (10, 13)

 MO

2647

39 (36, 41)

42 (39, 45)

19 (18, 21)

 MT

10,292

39 (38, 41)

43 (42, 44)

17 (16, 19)

 NE

2325

33 (30, 35)

49 (46, 51)

19 (16, 21)

 NJ

617

46 (40, 52)

37 (33, 42)

16 (12, 21)

 ND

4606

28 (26, 30)

49 (47, 51)

23 (21, 24)

 RI

859

49 (46, 53)

40 (34, 46)

11 (7, 14)

 SC

1007

46 (42, 51)

33 (29, 38)

20 (17, 23)

 TX

864

49 (44, 54)

35 (31, 39)

16 (13, 19)

 UT

1083

35 (30, 41)

48 (43, 52)

17 (15, 19)

  1. CI Confidence Interval;
  2. aData were from state Youth Risk Behavior Surveys in 14 states (2013, 2015, 2017 and 2019), the United States.
  3. bWeighted percentage of students that reported talking on a phone while driving during the 30 days before the survey (among students who drove). Percentages may not total 100 due to rounding.
  4. cOther included: American Indian/Alaskan Native, Asian, Native Hawaiian or Other Pacific Islander, and Multiple- Non-Hispanic/Latino