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Table 2 Mean TV viewing time by sex and age classes

From: Association between socioeconomic status and prolonged television viewing time in a general Japanese population: NIPPON DATA2010

  Total < 4 h/day ≥ 4 h/day P valuea
n (%) Mean (h/day) (95% CI) n (%) Mean (h/day) (95% CI) n (%) Mean (h/day) (95% CI)
Total
  2749   2.92 (2.84, 3.01) 1940 (70.6) 1.81 (1.76, 1.85) 809 (29.4) 5.61 (5.47, 5.75) <0.001
Men
 20–29 years 52 (4.4) 2.24 (1.73, 2.75) 39 (75.0) 1.40 (1.01, 1.78) 13 (25.0) 4.77 (4.25, 5.29) <0.001
 30–39 years 104 (8.9) 2.00 (1.73, 2.26) 88 (84.6) 1.57 (1.36, 1.78) 16 (15.4) 4.34 (4.03, 4.66) <0.001
 40–49 years 124 (10.6) 2.26 (1.99, 2.53) 98 (79.0) 1.67 (1.46, 1.89) 26 (21.0) 4.48 (4.22, 4.75) <0.001
 50–59 years 183 (15.6) 2.66 (2.37, 2.95) 140 (56.5) 1.88 (1.72, 2.04) 43 (23.5) 5.20 (4.52, 5.88) <0.001
 60–69 years 358 (30.5) 3.50 (3.24, 3.77) 222 (62.0) 1.99 (1.85, 2.13) 136 (38.0) 5.97 (5.59, 6.36) <0.001
 70–79 years 265 (22.6) 3.89 (3.59, 4.19) 141 (53.2) 2.10 (1.93, 2.27) 124 (46.8) 5.92 (5.55, 6.29) <0.001
 80–89 years 86 (7.3) 4.49 (3.81, 5.18) 40 (46.5) 1.76 (1.39, 2.14) 46 (53.5) 6.87 (6.16, 7.58) <0.001
Women
 20–29 years 65 (4.1) 2.43 (1.85, 3.00) 50 (76.9) 1.44 (1.13, 1.74) 15 (23.1) 5.73 (4.46, 7.01) <0.001
 30–39 years 227 (14.4) 1.75 (1.55, 1.95) 200 (88.1) 1.36 (1.20, 1.51) 27 (11.9) 4.69 (4.44, 4.93) <0.001
 40–49 years 178 (11.3) 2.02 (1.74, 2.30)* 159 (89.3) 1.56 (1.39, 1.73) 19 (10.7) 5.84 (4.56, 7.13) <0.001
 50-59 years 270 (17.2) 2.42 (2.23, 2.62) 219 (81.1) 1.82 (1.68, 1.95) 51 (18.9) 5.02 (4.66, 5.38) <0.001
 60–69 years 415 (26.3) 3.07 (2.87, 3.27)* 285 (68.7) 1.98 (1.85, 2.10) 130 (31.3) 5.47 (5.16, 5.78) <0.001
 70–79 years 319 (20.3) 3.34 (3.09, 3.59)* 199 (62.4) 2.02 (1.86, 2.17) 120 (37.6) 5.54 (5.18, 5.90) <0.001
 80–89 years 103 (6.5) 3.58 (3.12, 4.05) 60 (58.3) 2.02 (1.73, 2.30) 43 (41.7) 5.77 (5.18, 6.36) <0.001
  1. TV, television; CI, confidence intervals
  2. aP value for differences between <4 h/day and ≥4 h/day were estimated by Mann-Whitney tests
  3. *P<0.05 significantly different between men and women using Mann-Whitney tests