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Table 2 Sample basic characteristics according to the categorized frequency of leisure-time exercise

From: Smoking, leisure-time exercise and frequency of self-reported common cold among the general population in northeastern China: a cross-sectional study

Variables

Sample

(n = 1413)

Frequency of leisure-time exercise

Low (< 4 days/month) (N = 375)

Medium (1–2 days/week) (N = 624)

High (≥3 days/week) (N = 414)

Gender, n (%)**

 Male

627(44.4)

141(34.1)

285(45.7)

201(53.6)

Age, y**

38.92 ± 9.04

35.25 ± 7.55

38.44 ± 8.73

43.79 ± 8.94

Ethnicity, n (%)*

 Han

1293(91.5)

370(89.4)

571(91.5)

352(93.9)

Education levels, n (%)**

 Senior school or less

83(5.9)

10(2.4)

36(5.8)

37(9.9)

 Junior college

326(23.1)

80(19.3)

147(23.6)

99(26.4)

 Bachelor degree

799(56.5)

268(64.7)

336(53.8)

195(52.0)

 Master degree or greater

205(14.5)

56(13.5)

105(16.8)

44(11.7)

BMI**

23.90 ± 5.36

23.10 ± 3.95

24.30 ± 6.92

24.40 ± 3.18

Drinking categories (days/week), n (%)*

 0

859(60.8)

270(65.2)

365(58.5)

224(59.7)

 1–2

468(33.1)

125(30.2)

223(35.7)

120(32.0)

  ≥ 3

86(6.1)

19(4.6)

36(5.8)

31(8.3)

Sleep duration, n (%)*

  < 7 hours

402(28.5)

115(27.8)

168(26.9)

119(31.7)

 7–8 hours

561(39.7)

153(37.0)

256(41.0)

152(40.5)

  ≥ 8 hours

450(31.8)

146(35.3)

200(32.1)

104(27.7)

SRSS, n (%)*

  ≥ 23

594(42)

189(45.7)

260(41.7)

145(38.7)

Self-rated health, n (%)

 Poor

168(11.9)

82(19.8)

59(9.5)

27(7.2)

 Fair

718(50.8)

216(52.2)

353(56.6)

149(39.7)

 Good

527(37.3)

116(28.0)

212(34.0)

199(53.1)

Self-perceived life stress, n (%)*

 Low

217(15.4)

52(12.6)

82(13.1)

83(22.1)

 Fair

751(53.1)

217(52.4)

356(57.1)

178(47.5)

 High

445(31.5)

145(35.0)

186(29.8)

114(30.4)

Self-perceived work stress, n (%)**

 Low

165(11.7)

30(7.2)

56(9.0)

79(21.1)

 Fair

615(43.5)

171(41.3)

292(46.8)

152(40.5)

 High

633(44.8)

213(51.4)

276(44.2)

144(38.4)

SAS, n (%)**

  ≥ 50

219(15.5)

92(22.2)

87(13.9)

40(10.7)

SDS, n (%)*

  ≥ 50

561(39.7)

188(45.4)

238(38.1)

135(36.0)

NE*

3.78(3.10, 4.56)

3.83(3.21, 4.72)

3.82(3.10, 4.57)

3.64(2.97, 4.36)

MO

0.29(0.21, 0.39)

0.29(0.21, 0.38)

0.30(0.21, 0.40)

0.29(0.21, 0.40)

LY

2.15(1.83, 2.54)

2.16(1.81, 2.52)

2.15(1.84, 2.56)

2.12(1.81, 2.51)

  1. Values are shown as the mean ± SD or median (interquartile range) for continuous data and number and proportions for categorical data
  2. P-values were calculated by analysis of variance or Kruskal-Wallis H tests for continuous variables and trend χ2-tests for categorical variables
  3. *Statistical significance: P < 0.05
  4. **Statistical significance: P < 0.001