Table 2 Comparison of glycemic control status between groups across study periods using generalized estimating equation models.

From: Community interventions improve diabetes management and oral health in type 2 diabetes patients with chronic periodontitis

Outcome variables, n (%)

 

G0(n = 172)

G1(n = 188)

G2(n = 193)

G3(n = 194)

Group effecta

Group * Time interaction effect

Wald χ2

P-value

Wald χ2

P-value

FPG control rate

T0

79 (45.9)

89 (47.3)

92 (47.7)

100 (51.5)

1.061

0.786

29.713

 < 0.001*

T1

78 (45.3)

67 (35.6)

101 (52.3)

94 (48.5)

9.677

0.022*

T2

70 (40.7)

94 (50.0)

113 (58.5)

116 (59.8)

15.007

0.002*

T3

72 (41.9)

90 (47.9)

92 (47.7)

104 (53.6)

2.888

0.409

Time effectb

Wald χ2

1.837

18.063

16.084

14.482

    

P-value

0.607

 < 0.001*

0.001*

0.002*

    

HbA1c control rate

T0

100 (58.1)

110 (56.7)

106 (54.9)

110 (56.7)

1.876

0.599

57.361

 < 0.001*

T1

88 (51.2)

93 (49.5)

117 (60.6)

146 (75.3)

32.926

 < 0.001*

T2

95 (55.2)

129 (68.6)

133 (68.9)

134 (69.1)

6.639

0.084

T3

93 (54.1)

122 (64.9)

133 (68.9)

125 (64.4)

6.265

0.099

Time effectb

Wald χ2

2.232

21.641

25.818

25.437

    

P-value

0.526

 < 0.001*

 < 0.001*

 < 0.001*

    
  1. Data are presented as n (%).
  2. Adjusted for age, gender, area, education level, marital status, occupational status, sleep duration, healthy lifestyle score, duration of T2DM, disease history and medication history.
  3. If the group * time interaction effect is significant (P < 0.05), subsequent analyses should be performed to evaluate the main effects of the groupa and timeb.
  4. *All statistical tests are 2-tailed; P < 0.05 is considered statistically significant.
  5. Statistically significant values (P < 0.05) are highlighted in bold.
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